JavaScript | typedArray.slice() with Example

The typedArray.slice() is an inbuilt function in JavaScript which is used to return the part of the elements of the given typedArray.

typedArray.slice(begin, end)

Parameters: It takes two parameter which are specified below-

begin: It is the beginning index and it can be negative too.

end: It is the ending index and here slice extracts elements up to but not including end index.

Return value: It returns a new typedArray containing the extracted elements.
JavaScript code to show the working of this function:

<script> 
  
  // Creating some typedArray containing same values 
  const A = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  const B = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  const C = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  const D = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  const E = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  const F = new Uint8Array([ 5, 10, 15, 20, 25 ]); 
  
  // Calling slice function with starting and ending index 
  var a = A.slice(1, 2); 
  var b = B.slice(0, 3); 
  var c = C.slice(4); 
  var d = D.slice(0 
    
  // Here index is negative so it extract element 
  // from the end of the typedArray 
  var e = E.slice(-2); 
  var f = F.slice(); 
  
  // Printing the extracted arrays 
  document.write(a +"<br>"); 
  document.write(b +"<br>"); 
  document.write(c +"<br>"); 
  document.write(d +"<br>"); 
  document.write(e +"<br>"); 
  document.write(f); 
    
</script> 

Output:

10
5,10,15
25
5,10,15,20,25
20,25
5,10,15,20,25

JavaScript | typedArray.slice() with Example

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