Skip to content

Array

length number

name string

prototype object

isArray(value) function

Determine if the given value is an Array. Returns true if the argument is an array, otherwise false.

value: The value to be checked.

Returns: True if 'value' is an array, otherwise false.

from(arrayLike, mapFn, thisArg) function

Create a new array from an array-like or iterable object. An optional map function can be invoked on each element before it is added to the new array.

arrayLike: An array-like or iterable object to convert.

mapFn: Optional. A function to call on every element of the new array.

thisArg: Optional. A value to use as 'this' within the map function.

Returns: A new array populated with elements processed from arrayLike.

of(elements) function

Create a new array with a variable number of arguments, regardless of the number or type of the arguments. Unlike the Array constructor, there is no special treatment for a single numeric argument.

elements: A variable number of arguments which become array elements.

Returns: A new array containing the provided arguments.