Array.prototype.fill() - JavaScript | MDN

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Zero-based index at which to start filling, converted to an integer.

Using fill() to populate an empty array

This example shows how to populate an array, setting all elements to a specific value. The end parameter does not have to be specified.

TypedArray.prototype.fill()

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This page was last modified on Jul 20, 2025 by MDN contributors.

[Symbol.iterator]()

[Symbol.unscopables]

[Symbol.hasInstance]()

__defineGetter__()

__defineSetter__()

__lookupGetter__()

__lookupSetter__()

propertyIsEnumerable()

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