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JavaScript Array fill() Method

JavaScript Array Reference JavaScript Array Reference

Example

Fill all the array elements with a static value:

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.fill("Kiwi");

The result of fruits will be:

Kiwi,Kiwi,Kiwi,Kiwi
Try it yourself »

More "Try it Yourself" examples below.


Definition and Usage

The fill() method fills all the elements in an array with a static value.

It is possible to specify the index for starting and ending fill(). By default it changes the whole array.


Browser Support

The numbers in the table specify the first browser version that fully supports the method.

Method
fill() 45.0 12.0 No 31.0 7.1 32.0

Note: The fill() method is not supported in Internet Explorer 11 and earlier versions.


Syntax

array.fill(value,start,end)

Parameter Values

Parameter Description
value Required. The value to fill the array with
start Optional. The index to start filling the array (default is 0)
end Optional. The index to stop filling the array (default is array.length)

Technical Details

Return Value: An Array, the changed array
JavaScript Version: ECMAScript 6

Examples

More Examples

Example

Fill the last two array elements with a static value:

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.fill("Kiwi",2,4);

The output of the code above will be:

Banana,Orange,Kiwi,Kiwi
Try it yourself »

JavaScript Array Reference JavaScript Array Reference