Array.prototype.push() - JavaScript | MDN

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Array.prototype.unshift()

Array.prototype.unshift() has similar behavior to push(), but applied to the start of an array.

arr.concat([element0, element1, /* ... ,*/ elementN])

Array.prototype.unshift() has similar behavior to push(), but applied to the start of an array.

Merging two arrays

This example uses spread syntax to push all elements from a second array into the first one.

Indexed collections

Array.prototype.pop()

Array.prototype.shift()

Array.prototype.splice()

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This page was last modified on Jul 12, 2026 by MDN contributors.

[Symbol.iterator]()

[Symbol.unscopables]

[Symbol.hasInstance]()

__defineGetter__()

__defineSetter__()

__lookupGetter__()

__lookupSetter__()

propertyIsEnumerable()