How Can I Implement Conditional Module Imports in ES6?

Dynamic ES6 Module Imports

Conditional imports in ES6 were previously challenging due to restrictions on import placement. However, with the introduction of dynamic imports in ECMAScript 2020, this is now possible.

Conditional Import Mechanism

To import a module conditionally, you can use the syntax:

<code class="javascript">if (condition) {
    import('module-name')
    .then((module) => {
        console.log(module.function);
    });
}</code>

This returns a promise that resolves to the imported module. You can access its exported functions and variables within the ".then()" callback.

Example

To conditionally import the "something" module and use its "doStuff()" function, you would write:

<code class="javascript">if (condition) {
    import('something')
    .then((something) => {
        something.doStuff();
    });
}</code>

Availability

Dynamic imports are supported by modern browsers and can be enabled through a Babel preset or using a polyfill if necessary.

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