JavaScript | typedArray.fill() - Tutorialspoint.dev

The typedArray.fill() is an inbuilt function in JavaScript which is used to fill a value to typedArray from start index to end index.
Syntax:

typedarray.fill(value, start, end)

Parameters: It takes three parameters that are specified below-

value: It is the value to fill with typed array.

start: It is starting index, optional and its default value is 0.

end: It is ending index, optional and not included. Its default value is length of the typedArray.

Return value: It returns the modified array.
JavaScript code to show the working of this function:

// Javascript to illustrate typedArray.fill() 
<script> 
  
   // Creating some typedArrays 
   const A = new Uint8Array([ 0, 0, 0, 0 ]); 
   const B = new Uint8Array([ 0, 0, 0, 0 ]); 
   const C = new Uint8Array([ 0, 0, 0, 0 ]); 
   const D = new Uint8Array([ 0, 0, 0, 0 ]); 
  
   // Calling fill() function to fill different values 
   a = A.fill(4, 1, 3); 
   b = B.fill(5, 1); 
   c = C.fill(3); 
   d = D.fill(4, 0, 0); 
  
   // Printing modified array 
   document.write(a +"<br>"); 
   document.write(b +"<br>"); 
   document.write(c +"<br>"); 
   document.write(d +"<br>"); 
     
</script> 

Output:

0,4,4,0
0,5,5,5
3,3,3,3
0,0,0,0

JavaScript | typedArray.fill()

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