ES6 Modules

Short explanation

ES6 modules bring native module support to JavaScript with static analysis benefits and live bindings that reflect updates.

Syntax example

// dynamic import
import('./utils.js').then(mod => mod.doThing());

How JS handles it internally

Static imports allow bundlers and tools to analyze dependency graphs. Live bindings mean imports reference the original variable, not a snapshot.

FAQ

Q: What are live bindings?

A: Imports reference the exported variable itself, so if the exporting module updates the variable, the importing module sees the change.