JavaScript | Array.fill() Method

Fills given range of array elements with given value.
Syntax:

arr.fill(value[, start[, end]])

Parameters:

Value:- Value to be filled.
Start:- Start index (included) and its defaults value is 0.
End:- End index (excluded) and its default index is this.length.

Return value:
It return the modified array.
Browser Support:
Here in 2nd column int values is the version of the corresponding feature browser.

<script> 
  // input array contain some elements. 
  var 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)); 
</script> 

Output:

> Array [1, 2, 0, 0]

Program 2:
Let’s see JavaScript program:

<script> 
  // input array contain some elements. 
  var array = [ 1, 2, 3, 4 ]; 
  
  // Here array.fill function fill with  
  // 9 from position 2 till end. 
  console.log(array.fill(9, 2)); 
</script> 

Output:

> Array [1, 2, 9, 9]

Program 3:
Let’s see JavaScript program:

<script> 
  // input array contain some elements. 
  var array = [ 1, 2, 3, 4 ]; 
  
  // Here array.fill function fill with 
  // 6 from  position 0 till end. 
  console.log(array.fill(6)); 
</script> 

Output:

> Array [6, 6, 6, 6]

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