“uncaught SyntaxError: Cannot Use Import Statement Outside A Module” When Importing ECMAScript 6

The error message "Uncaught SyntaxError: Cannot use import statement outside a module" indicates that you are trying to use the import statement in a JavaScript file that is not being treated as a module.

To use ECMAScript 6 (ES6) modules, you need to explicitly indicate that a JavaScript file is a module. You can do this by adding the type="module" attribute to the <script> element that imports the module.

Here is an example:


By adding type="module", the browser will treat the script file as an ES6 module and allow the use of the import statement.

Additionally, ensure that your module file has the appropriate file extension, typically .mjs or .js, and that your server environment is set up to serve JavaScript files as modules.

Note that some environments, like Node.js, require additional configuration to enable ES6 modules. In Node.js, you would typically use the .mjs file extension for modules and run the file with the --experimental-modules flag.

Alternatively, if you are targeting older browsers or don’t want to deal with modules, you can use other approaches like using a bundler (e.g., Webpack) or transpiling your code with tools like Babel. These approaches can convert the ES6 syntax into a format that is compatible with older JavaScript environments.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!