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Topic #236

Modules Dynamic

Dynamic import loads modules on demand with import(). It powers code splitting and lazy-loaded features.

JavaScript Dynamic Import

Dynamic Import uses the syntax:

import(module);

Note: Dynamic Import was introduced in ECMAScript 2020 Dynamic Import is a way to load JavaScript modules at runtime, rather than at the start of your program.

Modern Software

Modern software splits imports into separate chunks.

Modules are downloaded only when requested - this method has many names:.

  • Dynamic Import
  • Code Splitting
  • Lazy Loading
  • Conditional Loading

Dynamic import is one of the most powerful features for modular and efficient code.

Unlike Static Import (which must appear at the top of a file), Dynamic Import can be used anywhere - inside functions, conditionals, event handlers, etc.

Syntax

import("./module.js")
  • The argument must be a string or expression that resolves to a path
  • You must run the import inside a module script (

    Modules Dynamic – FAQs

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