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Version: 3.28.0

Array()

The Array() constructor is used to create Array objects.

Syntax​

new Array(element0, element1, /* … ,*/ elementN)
new Array(arrayLength)

Array(element0, element1, /* … ,*/ elementN)
Array(arrayLength)

Note: Array() can be called with or without new. Both create a new Array instance.

Parameters​

  • elementN
    • : A JavaScript array is initialized with the given elements, except in the case where a single argument is passed to the Array constructor and that argument is a number (see the arrayLength parameter below). Note that this special case only applies to JavaScript arrays created with the Array constructor, not array literals created with the bracket syntax.
  • arrayLength
    • : If the only argument passed to the Array constructor is an integer between 0 and 232 - 1 (inclusive), this returns a new JavaScript array with its length property set to that number (Note: this implies an array of arrayLength empty slots, not slots with actual undefined values).

Exceptions​

  • RangeError
    • : Thrown if there's only one argument (arrayLength) and its value is not between 0 and 232 - 1 (inclusive).