JavaScript · Collections, storage and utilities

Generator function

Produces a sequence lazily. Each yield pauses the function until the next value is requested.

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Syntax

function* name() { yield value; }

Example

Try it

function* ids() { yield 1; yield 2; yield 3; }
console.log([...ids()]);

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.