Меню

Type module js ошибка

package.json

{
  ...
  "type": "module",
  "dependencies": {
    "vue": "^3.2.36"
  }
}

index.html

<!DOCTYPE html>
<html lang="ru">
  <head>
    <meta charset="utf-8">
    <title></title>
  </head>
  <body>
    <script src="main.js"></script>
  </body>
</html>

main.js
import Vue from 'vue'

Ошибка

Uncaught SyntaxError: Cannot use import statement outside a module (at main.js:1:1)


  • Вопрос задан

    28 окт. 2022

  • 150 просмотров

Самый простой вариант:

index.html

...
<script src="main.js" type="module"></script>
...

main.js

import 'node_modules/vue/dist/vue.global.js';
...

Пригласить эксперта

не хватает type=»module» у тега script, если вы сборщики не используете

Чтобы все заработало, нужно не только дописать type=module тегу script, но и запустить локальный сервер. Используйте икстеншин live server (или что-то подобное) вашего редактора кода, чтобы все заработало


  • Показать ещё
    Загружается…

29 янв. 2023, в 03:07

300000 руб./за проект

29 янв. 2023, в 02:16

700000 руб./за проект

29 янв. 2023, в 01:54

5000 руб./за проект

Минуточку внимания

Источник
Table of Contents

Hide

  1. What is SyntaxError: cannot use import statement outside a module?
  2. How to fix SyntaxError: cannot use import statement outside a module?
    1. Solution 1 – Add “type”: “module” to package.json 
    2. Solution 2 – Add type=”module” attribute to the script tag
    3. Solution 3 – Use import and require to load the modules
  3. Configuration Issue in ORM’s
  4. Conclusion

The Uncaught SyntaxError: cannot use import statement outside a module mainly occurs when developers use the import statement on the CommonJS instead of require statement.

What is SyntaxError: cannot use import statement outside a module?

There are several reasons behind this error. First, let us look at each scenario and solution with examples.

  • If you are using an older Node version < 13
  • If you are using a browser or interface that doesn’t support ES6
  • If you have missed the type=”module” while loading the script tag
  • If you missed out on the “type”: “module” inside the package.json while working on Node projects

Many interfaces till now do not understand ES6 Javascript features. Hence we need to compile ES6 to ES5 whenever we need to use that in the project.

The other possible reason is that you are using the file that is written in the ES6 module directly inside your code. It means you are loading the src file/directory instead of referring to the dist directory, which leads to a SyntaxError.

Usually, we use a bundled or dist file that is compiled to ES5/Javascript file and then import the modules in our code.

How to fix SyntaxError: cannot use import statement outside a module?

There are 3 ways to solve this error. Let us take a look at each of these solutions.

Solution 1 – Add “type”: “module” to package.json 

If you are working on Node.js or react applications and using import statements instead of require to load the modules, then ensure your package.json has a property "type": "module" as shown below.

Adding “type”: “module” to package.json will tell Node you are using ES6 modules(es modules), which should get solve the error. 

If you would like to use the ES6 module imports in Node.js, set the type property to the module in the package.json file.

   {
        // ...
        "type": "module",
        // ...
    }

If you are using TypeScript, we need to edit the tsconfig.json file and change the module property to “commonjs“, as shown below.

ts.config file

Change the ts.config file as shown below to resolve the Uncaught SyntaxError: cannot use import statement outside a module error.

    "target": "esnext",
    "module": "esnext",

to

    "target": "esnext",
    "module": "commonjs",

If this error mainly occurs in the TypeScript project, ensure that you are using a ts-node to transpile into Javascript before running the .ts file. Node.js can throw an error if you directly run the typescript file without transpiling.

Note: If your project does not have a package.json file, initialize it by using the npm init -y command in the root directory of your project.

Solution 2 – Add type=”module” attribute to the script tag

Another reason we get this error is if we are loading the script from the src directory instead of the built file inside the dist directory. 

It can happen if the src file is written in ES6 and not compiled into an ES5 (standard js file). The dist files usually will have the bundled and compiled files, and hence it is recommended to use the dist folder instead of src.

We can solve this error by adding a simple attribute type="module" to the script, as shown below.

<script type="module" src="some_script.js"></script>

Solution 3 – Use import and require to load the modules

In some cases, we may have to use both import and require statements to load the module properly.

For Example – 

    import { parse } from 'node-html-parser';
    parse = require('node-html-parser');

Note: When using modules, if you get ReferenceError: require is not defined, you’ll need to use the import syntax instead of require.

Configuration Issue in ORM’s

Another possible issue is when you are using ORM’s such as typeORM and the configuration you have set the entities to refer to the source folder instead of the dist folder.

The src folder would be of TypeScript file and referring the entities to .ts files will lead to cannot use import statement outside a module error.

Change the ormconfig.js to refer to dist files instead of src files as shown below.

 "entities": [
      "src/db/entity/**/*.ts", // Pay attention to "src" and "ts" (this is wrong)
   ],

to

  "entities": [
      "dist/db/entity/**/*.js", // Pay attention to "dist" and "js" (this is the correct way)
   ],

Conclusion

The Uncaught SyntaxError: cannot use import statement outside a module occurs if you have forgotten to add type="module" attribute while loading the script or if you are loading the src files instead of bundled files from the dist folder.

We can resolve the issue by setting the “type”: “module” inside the package.json while working on Node projects. If we are loading the Javascript file then we need to add the attribute type="module" to the script tag.

Related Tags
  • import,
  • require,
  • SyntaxError

Sign Up for Our Newsletters

Get notified on the latest articles

By checking this box, you confirm that you have read and are agreeing to our terms of use regarding the storage of the data submitted through this form.

Источник

If you are having trouble with the error: To load an ES module, set “type” – “module” in JavaScript, let’s follow this article. I will give you some solutions to fix it. Let’s go into detail now.

The error happens when you try using ES6 syntax like import-export without setting in file ‘package.json’. So you get a conflict.

Example of error:

const sum = (str) => {
  console.log(str);
};
import logText from "./logText";
logText("Hello");
Error: (node:17308) Warning: To load an ES module, set "type": "module" in the package.json or
use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
D:WorkspaceCTV WORKjavascriptindex.js:1
import logText from "./logText";
^^^^^^
 
SyntaxError: Cannot use import statement outside a module
	at ...

How to fix this error?

Solution: Setting ‘package.json.’

You will have to initiate the project if you want to use nodejs or ES6 modules syntax.

Step 1: Initiate project

You can init your project by this command:

npm init

Result:

{
  "name": "javascript",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo "Error: no test specified" && exit 1"
  },
  "author": "",
  "license": "ISC"
}

Step 2: Set ‘type’

You will have to set the ‘type’ property in the ‘package.json’ file to load ES modules.

Example:

{
  "name": "javascript",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "type": "module",
 
  "scripts": {
    "test": "echo "Error: no test specified" && exit 1"
  },
  "author": "",
  "license": "ISC" 
}

And your code will run.

Now you can import functions, variables, etc., from another file.

Example:

import logText from "./dialog.js";
dialog.logText("Hello"); 
 
const logText= (str) => {
  console.log(str);
};

function response(){
    console.log("Hi")
}

export default logText

Output:

Hello

You can also import more than one, like the code below.

Example:

const logText= (str) => {
  console.log(str);
};

function response(){
    console.log("Hi")
}

export {logText,response}
import * as dialog from "./dialog.js";
dialog.logText("Hello");
dialog.response();

Here I import logText and response function separately. Then I use the ‘*’ symbol to import all functions that I export to the dialog.js file. You can also export separate like this:

import {logText,response} from "./dialog.js";
dialog.logText("Hello");
dialog.response();

Output:

Hello
Hi

Summary

In this tutorial, I showed and explained how to fix the error: To load an ES module, set “type” – “module” in JavaScript. You should set ‘type’ property in package.json to ‘module.’

Maybe you are interested:

  • TypeError (intermediate value)(…) is not a function in JS
  • TypeError: indexOf is not a function in JavaScript
  • Identifier has already been declared Error in JavaScript
  • document.getElementsByClass is not a Function in JavaScript

Brent Johnson

Hello, guys! I hope that my knowledge in HTML, CSS, JavaScript, TypeScript, NodeJS, ReactJS, MongoDB, Python, MySQL, and npm computer languages may be of use to you. I’m Brent Johnson, a software developer.

Name of the university: HOU
Major: IT
Programming Languages: HTML, CSS, JavaScript, TypeScript, NodeJS, ReactJS, MongoDB, PyThon, MySQL, npm

Источник
Table of Contents
Hide
  1. How to fix cannot use import statement outside a module error?
    1. Solution 1 – Add “type”: “module” to package.json 
    2. Solution 2 – Add type=”module” attribute to the script tag
    3. Solution 3 – Use import and require to load the modules

The Uncaught syntaxerror: cannot use import statement outside a module occurs if you have forgotten to add type="module" attribute while loading the script or if you are loading the src file instead of bundled file from the dist folder.

There are several reasons behind this error, and the solution depends on how we call the module or script tag. We will look at each of the scenarios and the solution with examples.

How to fix cannot use import statement outside a module error?

Solution 1 – Add “type”: “module” to package.json 

If you are working on Node.js or react applications and using import statements instead of require to load the modules, then ensure your package.json has a property "type": "module" as shown below.

Adding “type”: “module” to package.json will tell Node you are using ES2015 modules(es modules), which should get solve the error. 

   {
        // ...
        "type": "module",
        // ...
    }

If you are using TypeScript, we need to edit the tsconfig.json file and change the module property to “commonjs“, as shown below.

ts.config file

Change the ts.config file as shown below to resolve the Uncaught syntaxerror: cannot use import statement outside a module error.

    "target": "esnext",
    "module": "esnext",

to

    "target": "esnext",
    "module": "commonjs",

Solution 2 – Add type=”module” attribute to the script tag

Another reason we get this error is if we are loading the script from the src directory instead of the built file inside the dist directory. 

It can happen if the src file is written in es6 and not compiled into a standard js file. The dist files usually will have the bundled and compiled JavaScript file, and hence it is recommended to use the dist folder instead of src.

We can solve this error by adding a simple attribute type="module" to the script, as shown below.

<script type="module" src="some_script.js"></script>

Solution 3 – Use import and require to load the modules

In some cases, we may have to use both import and require statements to load the module properly.

For Example – 

    import { parse } from 'node-html-parser';
    parse = require('node-html-parser');

Note: When using modules, if you get ReferenceError: require is not defined, you’ll need to use the import syntax instead of require.

Avatar Of Srinivas Ramakrishna

Srinivas Ramakrishna is a Solution Architect and has 14+ Years of Experience in the Software Industry. He has published many articles on Medium, Hackernoon, dev.to and solved many problems in StackOverflow. He has core expertise in various technologies such as Microsoft .NET Core, Python, Node.JS, JavaScript, Cloud (Azure), RDBMS (MSSQL), React, Powershell, etc.

Sign Up for Our Newsletters

Subscribe to get notified of the latest articles. We will never spam you. Be a part of our ever-growing community.

By checking this box, you confirm that you have read and are agreeing to our terms of use regarding the storage of the data submitted through this form.

Источник

Earlier today I was working on a small-ish project. I had a couple files to start with, a main.js file and another one, we’ll call it foo.js. I thought, since I have done this a million times before, that I could just import { whatever } from './foo.js'; and it would work like it always does. Problem is, I forgot one major piece of the puzzle. Let’s see what that missing piece was.

The Javascript error “SyntaxError: Cannot use import statement outside a module” occurs when using import in some Javascript code that’s not considered a module. Fix it by adding "type": "module" to your package.json file, or adding type="module" to your <script> tags.

❌ Problem: You don’t have a package.json

The most common cause of this error is that you don’t have a package.json, or it’s missing the "type": "module" property. Not to worry! This is a super simple fix. Let’s recreate the problem so you can see what causes it.

First, let’s take a look at (a simplified version of) the file structure I was working with. Here’s the files that were in my working directory when I got this error message:

./
├── foo.js
└── main.js

That’s it, just two files. Again, these aren’t the exact files I was working with. I simplified the situation so it would be easier to explain. Here’s what’s in the example main.js:

import { foo } from './foo.js';

console.log(foo);

Pretty simple, right? We’re just importing a variable called foo from foo.js and printing out the contents of that variable to the console. Let’s now take a look at what’s actually in foo.js:

export const foo = "bar";

That’s it, just one line. A variable called foo that is exported, with a value of "bar". Can’t get much simpler than that!

But these two simple files caused me some problems when I ran main.js with the following command:

After running that, the error I got was:

(node:547896) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/home/user/main.js:1
import { foo } from './foo';
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at Object.compileFunction (node:vm:352:18)
    at wrapSafe (node:internal/modules/cjs/loader:1032:15)
    at Module._compile (node:internal/modules/cjs/loader:1067:27)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)
    at node:internal/main/run_main_module:17:47

Woof! that’s a nasty looking error message for what ended up being a pretty simple fix. If you look up at the top line of the error message, it tells you exactly what you need to do. So… on to the first solution!

✅ Fix: Create package.json and set the type property to "module"

For this situation, which is the simplest, all we need to do is create a package.json file. This file is what Node uses to determine some key things about the code it’s running. All it has to do is exist in the directory you’re running the node command from; you don’t have to specify its location on the command line or anything like that.

Here’s the bare minimum you’d need to have in package.json to prevent “SyntaxError: Cannot use import statement outside a module”:

That’s it! That’s all there is to it in this case. However, there are other situations where you may have this error happen – read on to find out!

❌ Problem: You’re using import in a <script> tag

Let’s say, instead of running some Javascript files on your server (or local machine) with Node, you’re actually using import within a webpage’s <script> tag. This is possible to do, unlike it was a few years ago, but you have to do it right!

Let’s take a look at some code that will cause the error.

First, this is the directory structure of our example:

./
├── foo.js
└── index.html

What we have is two files; the foo.js file is the Javascript that has some exports in it that we want to import into a <script> tag in index.html. Make sense? Good.

Here’s what we have in our index.html file:

<!doctype html>
<html>
    <head>
        <title>My cool webpage!</title>
    </head>
    <body>
        <h2>Here's some content</h2>
        <p>Blah blah blah blah blah blah</p>
        <script src="foo.js"></script>
        <script>
            import { foo } from './foo.js';
            console.log(foo);
        </script>
    </body>
</html>

Looks pretty simple. Of course, if you were reading this 5 years ago, you’d say “wait, no way! import and export are just Webpack things, aren’t they?”. And you’d have been right. But, the ES standards have come a long way, and we’re living in the future now, so we can do this (in most browsers).

Below is what we have in our foo.js file:

export const foo = "bar";

Just like our previous example, all we are doing in foo.js is exporting a variable foo with the value of "bar".

Now, in order to run this example, we have to have a web server. Before you go spinning up a full-blown Nginx instance somewhere, chillax. We have a much simpler solution at our fingertips: Python 3’s http.server module. It’s great for situations like this.

All we have to do is run the following command and we’ll serve up this folder via HTTP:

And then we’ll see some output like this, letting us know that it’s waiting for requests:

Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...

Cool! Now let’s browse to the page and see what happens (open up the dev console!):

Whoops, looks like we’ve got two errors now! Well, better not waste any more time. Let’s get to fixing this.

✅ Fix: Set the type property of your <script> tags to “module”

Just like with our Node example above, what we have to do here is let the Javascript interpreter know that we are indeed acting like an ES6 module here. That way, the import and export statements will be recognized as valid.

Here’s the correct version of index.html:

<!doctype html>
<html>
    <head>
        <title>My cool webpage!</title>
    </head>
    <body>
        <h1>Here's some content</h1>
        <p>Blah blah blah blah blah blah</p>
        <script src="foo.js" type="module"></script>
        <script type="module">
            import { foo } from './foo.js';
            console.log(foo);
        </script>
    </body>
</html>

Note the type="module" properties added to both the imported foo.js script tag, and the inline script tag that we have our import statement in.

Now, when we reload the webpage, we should see the expected output in the dev tools console:

Success!

I’ll be honest, the fact that this worked at all surprised me too. I’m not typically using import or export right there in the raw HTML file. In fact, I’m usually building React applications – but that’s a discussion for another day.

Speaking of React applications…

❌ Problem: You included the unpacked Javascript in a Webpack based project

We’ll just quickly go over this last probable cause of the “SyntaxError: Cannot use import statement outside a module” error, since it’s so simple.

Situation: you’re working on a React app (or something else that’s packed with Webpack). Your app builds correctly, you have the Javascript included in your index.html page, you think you’re good to go. But then you get this dreaded error when you go look at the page’s dev console.

What happened?

✅ Fix: Include the bundle.json in your HTML file instead

You probably accidentally imported the un-webpacked Javascript code in your index.html file. Typically, this will be found in a directory called src. The packed Javascript file will probably be located in a directory called dist and be called something like bundle.json.

Since every project structure is different, you’re kind of on your own here for finding the bundled Javascript. But, if you look around, I’m sure you’ll find it. If not, yell at your project lead. But don’t tell them I told you to do that 😉

Conclusion

In this article, we looked at a three different causes of the Javascript error “SyntaxError: Cannot use import statement outside a module”. The bottom line is, you have to use import and export in a module, not just plain old Javascript.

To summarize, here’s three things you should check and try:

  • If you’re using Node on the back end, make sure you have a package.json file and it has "type": "module" as one of its properties
  • If you’re having this error with embedded Javascript in <script> tags, make sure both your embedded script and the one you’re importing have the property type="module".
  • If you’re using Webpack, make sure the script you include in your HTML file is the bundled Javascript and not the raw stuff in the src directory.

That’s all for now, hope it helps!

Источник

JavaScript programs started small by being used here and there. Over time, the usage of JavaScript increased and we’re writing full applications that run in the browser. These large applications can be hard to maintain. It makes sense to think about ways of splitting them up into modules.

Modern browsers ship with native module support allowing them to optimize which module must be loaded.

A common error with modules is the “Uncaught SyntaxError: Cannot use import statement outside a module”. This error means you must explicitly tell the environment that the loaded file is a module. Let’s have a look at how to do that in the browser and Node.js

Node.js Series Overview

  • Node.js
  • Strings
  • Streams
  • Date & Time
  • Arrays
  • Promises
  • JSON
  • Iterators
  • Classes
  • Numbers
  • Objects
  • File System
  • Map
  • Process
  • Symbols
  • Platform/OS
  • HTTPS
  • Hashing

  1. Increase the Memory Limit for Your Process

  2. Why You Should Add “node” in Your Travis Config

  3. Create a PDF from HTML with Puppeteer and Handlebars

  4. Create Your Own Custom Error

  5. Retrieve a Request’s IP Address in Node.js

  6. Detect the Node.js Version in a Running Process or App

  7. How to Base64 Encode/Decode a Value in Node.js

  8. Check if a Value Is Null or Undefined in JavaScript or Node.js

  9. How to Fix “Uncaught SyntaxError: Cannot use import statement outside a module”

  10. Fix „Socket Hang Up“ Errors

  11. Nested Destructuring in JavaScript or Node.js


  1. Increase the Memory Limit for Your Process


  2. Why You Should Add “node” in Your Travis Config

  3. Create a PDF from HTML with Puppeteer and Handlebars

  4. Create Your Own Custom Error

  5. Retrieve a Request’s IP Address in Node.js

  6. Detect the Node.js Version in a Running Process or App

  7. How to Base64 Encode/Decode a Value in Node.js

  8. Check if a Value Is Null or Undefined in JavaScript or Node.js

  9. How to Fix “Uncaught SyntaxError: Cannot use import statement outside a module”

  10. Fix „Socket Hang Up“ Errors

  11. Nested Destructuring in JavaScript or Node.js

  1. String Replace All Appearances

  2. Remove All Whitespace From a String in JavaScript

  3. Generate a Random ID or String in Node.js or JavaScript

  4. Remove Extra Spaces From a String in JavaScript or Node.js

  5. Remove Numbers From a String in JavaScript or Node.js

  6. Get the Part Before a Character in a String in JavaScript or Node.js

  7. Get the Part After a Character in a String in JavaScript or Node.js

  8. How to Check if a Value is a String in JavaScript or Node.js

  9. Check If a String Includes All Strings in JavaScript/Node.js/TypeScript

  10. Check if a Value is a String in JavaScript and Node.js

  11. Limit and Truncate a String to a Given Length in JavaScript and Node.js

  12. Split a String into a List of Characters in JavaScript and Node.js

  13. How to Generage a UUID in Node.js

  14. Reverse a String in JavaScript or Node.js

  15. Split a String into a List of Lines in JavaScript or Node.js

  16. Split a String into a List of Words in JavaScript or Node.js

  17. Detect if a String is in camelCase Format in Javascript or Node.js

  18. Check If a String Is in Lowercase in JavaScript or Node.js

  19. Check If a String is in Uppercase in JavaScript or Node.js

  20. Get the Part After First Occurrence in a String in JavaScript or Node.js

  21. Get the Part Before First Occurrence in a String in JavaScript or Node.js

  22. Get the Part Before Last Occurrence in a String in JavaScript or Node.js

  23. Get the Part After Last Occurrence in a String in JavaScript or Node.js

  24. How to Count Words in a File

  25. How to Shuffle the Characters of a String in JavaScript or Node.js

  26. Append Characters or Words to a String in JavaScript or Node.js


    (Coming soon)

  27. Check if a String is Empty in JavaScript or Node.js


    (Coming soon)

  28. Ensure a String Ends with a Given Character in JavaScript or Node.js


    (Coming soon)

  29. Left-Trim Characters Off a String in JavaScript or Node.js


    (Coming soon)

  30. Right-Trim Characters Off a String in JavaScript or Node.js


    (Coming soon)

  31. Lowercase the First Character of a String in JavaScript or Node.js


    (Coming soon)

  32. Uppercase the First Character of a String in JavaScript or Node.js


    (Coming soon)

  33. Prepend Characters or Words to a String in JavaScript or Node.js


    (Coming soon)

  1. String Replace All Appearances

  2. Remove All Whitespace From a String in JavaScript

  3. Generate a Random ID or String in Node.js or JavaScript

  4. Remove Extra Spaces From a String in JavaScript or Node.js

  5. Remove Numbers From a String in JavaScript or Node.js

  6. Get the Part Before a Character in a String in JavaScript or Node.js

  7. Get the Part After a Character in a String in JavaScript or Node.js

  8. How to Check if a Value is a String in JavaScript or Node.js

  9. Check If a String Includes All Strings in JavaScript/Node.js/TypeScript

  10. Check if a Value is a String in JavaScript and Node.js

  11. Limit and Truncate a String to a Given Length in JavaScript and Node.js

  12. Split a String into a List of Characters in JavaScript and Node.js

  13. How to Generage a UUID in Node.js

  14. Reverse a String in JavaScript or Node.js

  15. Split a String into a List of Lines in JavaScript or Node.js

  16. Split a String into a List of Words in JavaScript or Node.js

  17. Detect if a String is in camelCase Format in Javascript or Node.js

  18. Check If a String Is in Lowercase in JavaScript or Node.js

  19. Check If a String is in Uppercase in JavaScript or Node.js

  20. Get the Part After First Occurrence in a String in JavaScript or Node.js

  21. Get the Part Before First Occurrence in a String in JavaScript or Node.js

  22. Get the Part Before Last Occurrence in a String in JavaScript or Node.js

  23. Get the Part After Last Occurrence in a String in JavaScript or Node.js

  24. How to Count Words in a File

  25. How to Shuffle the Characters of a String in JavaScript or Node.js

  26. Append Characters or Words to a String in JavaScript or Node.js

    (Coming soon)
  27. Check if a String is Empty in JavaScript or Node.js

    (Coming soon)
  28. Ensure a String Ends with a Given Character in JavaScript or Node.js

    (Coming soon)
  29. Left-Trim Characters Off a String in JavaScript or Node.js

    (Coming soon)
  30. Right-Trim Characters Off a String in JavaScript or Node.js

    (Coming soon)
  31. Lowercase the First Character of a String in JavaScript or Node.js

    (Coming soon)
  32. Uppercase the First Character of a String in JavaScript or Node.js

    (Coming soon)
  33. Prepend Characters or Words to a String in JavaScript or Node.js

    (Coming soon)

  1. Filter Data in Streams

  1. Get Number of Seconds Since Epoch in JavaScript

  2. Get Tomorrow’s Date in JavaScript

  3. Increase a Date in JavaScript by One Week

  4. Add Seconds to a Date in Node.js and JavaScript

  5. Add Month(s) to a Date in JavaScript or Node.js

  6. Add Week(s) to a Date in JavaScript or Node.js

  7. Get the Current Year in JavaScript or Node.js

  8. How to Get a UNIX Timestamp in JavaScript or Node.js

  9. How to Convert a UNIX Timestamp to a Date in JavaScript or Node.js

  10. Add Days to a Date in JavaScript or Node.js

  11. Get Yesterday’s Date in JavaScript or Node.js

  12. Add Minutes to a Date in JavaScript or Node.js


    (Coming soon)

  13. Add Hours to a Date in JavaScript or Node.js


    (Coming soon)

  14. Check If a Date Is Today in JavaScript or Node.js

  15. Check If a Date is Tomorrow in JavaScript or Node.js

  16. Check If a Date is Yesterday in JavaScript or Node.js

  17. How to Format a Date YYYY-MM-DD in JavaScript or Node.js

  1. Get Number of Seconds Since Epoch in JavaScript

  2. Get Tomorrow’s Date in JavaScript

  3. Increase a Date in JavaScript by One Week

  4. Add Seconds to a Date in Node.js and JavaScript

  5. Add Month(s) to a Date in JavaScript or Node.js

  6. Add Week(s) to a Date in JavaScript or Node.js

  7. Get the Current Year in JavaScript or Node.js

  8. How to Get a UNIX Timestamp in JavaScript or Node.js

  9. How to Convert a UNIX Timestamp to a Date in JavaScript or Node.js

  10. Add Days to a Date in JavaScript or Node.js

  11. Get Yesterday’s Date in JavaScript or Node.js

  12. Add Minutes to a Date in JavaScript or Node.js

    (Coming soon)
  13. Add Hours to a Date in JavaScript or Node.js

    (Coming soon)

  14. Check If a Date Is Today in JavaScript or Node.js

  15. Check If a Date is Tomorrow in JavaScript or Node.js

  16. Check If a Date is Yesterday in JavaScript or Node.js

  17. How to Format a Date YYYY-MM-DD in JavaScript or Node.js

  1. How to Run an Asynchronous Function in Array.map()

  2. How to Reset and Empty an Array

  4. Clone/Copy an Array in JavaScript and Node.js

  5. Get an Array With Unique Values (Delete Duplicates)

  6. Sort an Array of Integers in JavaScript and Node.js

  7. Sort a Boolean Array in JavaScript, TypeScript, or Node.js

  8. Check If an Array Contains a Given Value in JavaScript or Node.js

  9. Add an Item to the Beginning of an Array in JavaScript or Node.js

  10. Append an Item at the End of an Array in JavaScript or Node.js

  11. How to Exit and Stop a for Loop in JavaScript and Node.js

  12. Split an Array Into Smaller Array Chunks in JavaScript and Node.js

  13. How to Get an Index in a for…of Loop in JavaScript and Node.js

  14. How to Exit, Stop, or Break an Array#forEach Loop in JavaScript or Node.js

  15. Retrieve a Random Item From an Array in JavaScript or Node.js

  16. How to Reverse an Array in JavaScript and Node.js

  17. Sort an Array of Strings in JavaScript, TypeScript or Node.js

  18. Sort an Array of Objects in JavaScript, TypeScript or Node.js

  19. Check If a Value Is an Array in JavaScript or Node.js

  20. Join an Array of Strings to a Single String Value


    (Coming soon)


  1. How to Run an Asynchronous Function in Array.map()

  2. How to Reset and Empty an Array

  3. for…of vs. for…in Loops

  4. Clone/Copy an Array in JavaScript and Node.js

  5. Get an Array With Unique Values (Delete Duplicates)

  6. Sort an Array of Integers in JavaScript and Node.js

  7. Sort a Boolean Array in JavaScript, TypeScript, or Node.js

  8. Check If an Array Contains a Given Value in JavaScript or Node.js

  9. Add an Item to the Beginning of an Array in JavaScript or Node.js

  10. Append an Item at the End of an Array in JavaScript or Node.js

  11. How to Exit and Stop a for Loop in JavaScript and Node.js

  12. Split an Array Into Smaller Array Chunks in JavaScript and Node.js

  13. How to Get an Index in a for…of Loop in JavaScript and Node.js

  14. How to Exit, Stop, or Break an Array#forEach Loop in JavaScript or Node.js

  15. Retrieve a Random Item From an Array in JavaScript or Node.js

  16. How to Reverse an Array in JavaScript and Node.js

  17. Sort an Array of Strings in JavaScript, TypeScript or Node.js

  18. Sort an Array of Objects in JavaScript, TypeScript or Node.js

  19. Check If a Value Is an Array in JavaScript or Node.js

  20. Join an Array of Strings to a Single String Value

    (Coming soon)

  1. Callback and Promise Support in your Node.js Modules

  2. Run Async Functions/Promises in Sequence

  3. Run Async Functions/Promises in Parallel

  4. Run Async Functions in Batches

  5. How to Fix “Promise resolver undefined is not a function” in Node.js or JavaScript

  6. Detect if Value Is a Promise in Node.js and JavaScript

  7. Overview of Promise-Based APIs in Node.js


  1. Callback and Promise Support in your Node.js Modules

  2. Run Async Functions/Promises in Sequence

  3. Run Async Functions/Promises in Parallel

  4. Run Async Functions in Batches

  5. How to Fix “Promise resolver undefined is not a function” in Node.js or JavaScript

  6. Detect if Value Is a Promise in Node.js and JavaScript

  7. Overview of Promise-Based APIs in Node.js

  1. Human-Readable JSON.stringify() With Spaces and Line Breaks

  2. Write a JSON Object to a File

  3. Create a Custom “toJSON” Function in Node.js and JavaScript

  1. Human-Readable JSON.stringify() With Spaces and Line Breaks

  2. Write a JSON Object to a File

  3. Create a Custom “toJSON” Function in Node.js and JavaScript

  4. Securely Parse JSON

  1. Check If a Value Is Iterable in JavaScript or Node.js

  1. Check If a Value Is Iterable in JavaScript or Node.js

  1. Extend Multiple Classes (Multi Inheritance)

  2. Retrieve the Class Name at Runtime in JavaScript and Node.js

  1. Extend Multiple Classes (Multi Inheritance)

  2. Retrieve the Class Name at Runtime in JavaScript and Node.js

  1. Generate a Random Number in Range With JavaScript/Node.js

  2. Ensure a Positive Number in JavaScript or Node.js

  3. Check if a Number Is Infinity

  4. Check If a Number has Decimal Places in JavaScript or Node.js


    (Coming soon)

  5. Use Numeric Separators for Better Readability

  1. Generate a Random Number in Range With JavaScript/Node.js

  2. Ensure a Positive Number in JavaScript or Node.js

  3. Check if a Number Is Infinity

  4. Check If a Number has Decimal Places in JavaScript or Node.js

    (Coming soon)

  5. Use Numeric Separators for Better Readability

  2. How to Check if an Object is Empty in JavaScript or Node.js

  3. How to CamelCase Keys of an Object in JavaScript or Node.js

  4. How to Snake_Case Keys of an Object in JavaScript or Node.js

  5. How to Destructure a Dynamic Key in JavaScript or Node.js

  6. How to Get All Keys (Including Symbols) from an Object in JavaScript or Node.js

  7. How to Delete a Key From an Object in JavaScript or Node.js

  8. Iterate Through an Object’s Keys and Values in JavaScript or Node.js

  9. How to Convert URLSearchParams to Object

  10. Check If a Value Is an Object in JavaScript or Node.js

  11. Conditionally Add Properties to an Object in JavaScript or Node.js

  1. How to Merge Objects

  2. How to Check if an Object is Empty in JavaScript or Node.js

  3. How to CamelCase Keys of an Object in JavaScript or Node.js

  4. How to Snake_Case Keys of an Object in JavaScript or Node.js

  5. How to Destructure a Dynamic Key in JavaScript or Node.js

  6. How to Get All Keys (Including Symbols) from an Object in JavaScript or Node.js

  7. How to Delete a Key From an Object in JavaScript or Node.js

  8. Iterate Through an Object’s Keys and Values in JavaScript or Node.js

  9. How to Convert URLSearchParams to Object

  10. Check If a Value Is an Object in JavaScript or Node.js

  11. Conditionally Add Properties to an Object in JavaScript or Node.js

  1. Get a File’s Created Date

  2. Get a File’s Last Modified or Updated Date of a File

  3. How to Create an Empty File

  4. Check If a Path or File Exists

  6. Check If a Path Is a Directory

  7. Check If a Path Is a File

  8. Retrieve the Path to the User’s Home Directory

  10. Read File Content as String

  11. Check If a Directory Is Empty

  12. How to Create a Directory (and Parents If Needed)

  15. Get a File Name (With or Without Extension)

  1. Get a File’s Created Date

  2. Get a File’s Last Modified or Updated Date of a File

  3. How to Create an Empty File

  4. Check If a Path or File Exists

  5. How to Rename a File

  6. Check If a Path Is a Directory

  7. Check If a Path Is a File

  8. Retrieve the Path to the User’s Home Directory

  9. How to Touch a File

  10. Read File Content as String

  11. Check If a Directory Is Empty

  12. How to Create a Directory (and Parents If Needed)

  13. Get a File‘s Extension

  14. Get the Size of a File

  15. Get a File Name (With or Without Extension)

  16. Read a JSON File

  1. Create From Object

  2. Transform to an Object

  1. Determine the Node.js Version Running Your Script

  1. Determine the Node.js Version Running Your Script

  1. Check if a Value is a Symbol in JavaScript or Node.js

  1. Check if a Value is a Symbol in JavaScript or Node.js

  1. Detect if Running on Linux

  2. Detect if Running on macOS

  3. Detect if Running on Windows

  4. Check if Running on 64bit or 32bit Platform

  5. Constant for Platform-Specific Newline

  1. Detect if Running on Linux

  2. Detect if Running on macOS

  3. Detect if Running on Windows

  4. Check if Running on 64bit or 32bit Platform

  5. Constant for Platform-Specific Newline

  1. How to Download a File

  2. Retrieve the List of Supported Hash Algorithms

  1. Calculate an MD5 Hash

  2. Retrieve the List of Supported Hash Algorithms

  3. Calculate a SHA256 Hash

Fix “Uncaught SyntaxError” in the Browser

Browsers support modules out of the box. But you must tell the browser that imports using a <script> tag should be handled as a module. For example, frontend tools like Vite create a modern output bundle using modules.

Fix the syntax error by adding type="module" to your script tags:

<script type="module" src="/assets/app.js"></script>

Fix “Uncaught SyntaxError” in Node.js

You must tell Node.js that you’re using modules when your code is using import or export keywords. Node.js in version 18.x uses CommonJS as the default, but CommonJS doesn’t support these keywords. You must run your app as a module. You can do that by setting the type: "module" of your app inside the package.json file:

package.json

{
  "type": "module"
}

This resolves the “Uncaught SyntaxError” in your Node.js application and you can write modern code using ECMAScript modules.

Enjoy!

Mentioned Resources

  • Browser module support guide on MDN
  • Vite website

Get Notified on New Future Studio
Content and Platform Updates

Get your weekly push notification about new and trending
Future Studio content and recent platform enhancements

Marcus Pöhls

Marcus is a fullstack JS developer. He’s passionate about the hapi framework for Node.js and loves to build web apps and APIs. Creator of Futureflix and the “learn hapi” learning path.

Источник

0 0 голоса
Рейтинг статьи
Подписаться
Уведомить о
guest

0 комментариев
Старые
Новые Популярные
Межтекстовые Отзывы
Посмотреть все комментарии

А вот еще интересные материалы:

  • Яшка сломя голову остановился исправьте ошибки
  • Ясность цели позволяет целеустремленно добиваться намеченного исправьте ошибки
  • Ясность цели позволяет целеустремленно добиваться намеченного где ошибка
  • Txd workshop ошибка при открытии hud txd для gta sa
  • Tx800fw epson ошибка принтера

    • ➤