JavaScript Array length Attribute

The JavaScript array length property sets or returns the number of elements in the array.

Syntax:

Return the length of the array:

array.length

Set the length of the array:

array.length = number

Example

var　fruits　=　['Apple'　'Mango'　'Banana'];
fruits.length;

All browsers fully support the length property:

Property
length	Is	Is	Is	Is	Is

Return Value:	A Number, representing the number of elements in the array object
JavaScript Version:	ECMAScript 1

The index of the last element equals the length property value minus1.

This example uses the length property to display the value of the last element:

Example

var　fruits　=　['Apple'　'Mango'　'Banana'];
fruits[fruits.length　-　1;