Last Updated : 15 Jul, 2024
The JavaScript Array fill() Method fills a given range of array elements with the given value. This method is used to manipulate the existing array according to our needs.
Syntax:arr.fill(value,start,end)Parameters:
Example 1: In this example, we will fill an array with 0 starting from an index at 2 till the end index of 4.
JavaScript
// Input array contain some elements.
let array = [1, 2, 3, 4];
// Here array.fill function fills with 0
// from position 2 till position 3.
console.log(array.fill(0, 2, 4));
Example 2: In this example, we will fill the array with 9 starting from an index at 2 till the end index of the array.
JavaScript
// Input array contain some elements.
let array = [1, 2, 3, 4, 5, 6];
// Here array.fill function fill with
// 9 from position 2 till end.
console.log(array.fill(9, 2));
[ 1, 2, 9, 9, 9, 9 ]
Example 3: In this example, we will fill the array completely with 6. This is done by not giving the start and end index to the fill method.
JavaScript
// Input array contain some elements.
let array = [1, 2, 3, 4];
// Here array.fill function fill with
// 6 from position 0 till end.
console.log(array.fill(6));
We have a complete list of Javascript Array methods, to check those please go through this Javascript Array Complete reference article.
Supported Browsers:The browsers supported by JavaScript Array join() method are listed below:
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