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JavaScript Array concat()


Example

Join two arrays:

const hege = ["Cecilie", "Lone"];
const stale = ["Emil", "Tobias", "Linus"];
const children = hege.concat(stale);

Try it Yourself »

More "Try it Yourself" examples below.


Definition and Usage

The concat() method concatenates (joins) two or more arrays.

The concat() method does not change the existing arrays, but returns a new array, containing the values of the joined arrays.


Browser Support

concat() is fully supported in all browsers:

Chrome IE Edge Firefox Safari Opera
Yes Yes Yes Yes Yes Yes

Syntax

array1.concat(array2, array3, ..., arrayX)

Parameter Values

Parameter Description
array2, array3, ..., arrayX Required. The arrays to be joined


Technical Details

Return Value: An Array object, representing the joined array
JavaScript Version: ECMAScript 1

More Examples

Example

Join three arrays:

const hege = ["Cecilie", "Lone"];
const stale = ["Emil", "Tobias", "Linus"];
const kai = ["Robin"];
const children = hege.concat(stale, kai);
Try it Yourself »

Related Pages

Array Tutorial

Array Const

Array Methods

Sorting Arrays

Array Iterations