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JavaScript

Rest Parameters

Definition

The `...` syntax used in function parameters to collect all remaining arguments into an array. Unlike the `arguments` object, rest parameters produce a real array.

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Related Terms

Destructuring

A syntax for extracting values from arrays or properties from objects into distinct variables. Destructuring simplifies code and is commonly used in function parameters, imports, and React hooks.

Spread Operator

The ... syntax that expands an iterable (array, string, object) into individual elements. Used for copying arrays/objects, merging, and passing multiple arguments to functions.