How to Achieve Runtime Dependency Resolution with ES6 Imports?
Oct 28, 2024 am 06:40 AMES6 Variable Importing: Exploring Runtime Dependency Resolution
In ES6, import statements provide a convenient way to load external modules. However, static analysis limitations prevent importing based on runtime information.
Specifically, consider the use case of conditionally importing modules based on configuration values:
<code class="javascript">import something from './utils/' + variableName;</code>
This approach is not feasible with the standard import statement. To resolve this issue, we can utilize the loader API and a polyfill.
Loader API (Polyfilled)
The loader API provides a System.import method that supports dynamic module loading. This allows us to import modules based on the value of variableName at runtime:
<code class="javascript">System.import('./utils/' + variableName).then(function(m) { console.log(m); });</code>
Note that this approach requires a polyfill since the loader API is not yet part of the ECMAScript specification.
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