How would you use dynamic import() to lazy-load a component-specific library?
Tests lazy loading and bundle splitting. Good answers call import() inside the component lifecycle, await the module namespace, let the bundler split the chunk, and handle loading and error states. Bad answers put import() at top level, defeating lazy loading.
Tests dynamic import usage for code splitting tied to component lifecycles. A strong answer notes that import() returns a promise evaluated only when called, so you invoke it inside the component mount or render path, not at the top level. You await the module namespace object to access the library exports, letting the bundler create a separate chunk. You must also handle the async gap with loading states and catch network or evaluation failures.
Read the original → developer.mozilla.org
- #dynamic-import
- #code-splitting
- #performance
- #lazy-loading
- #javascript
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