JavaScript | ArrayBuffer.isView()

The ArrayBuffer.isView() is an inbuilt function in JavaScript which is used to check whether the given argument for the function is typed array or not.
List of typed array:

Int8Array();

Uint8Array();

Uint8ClampedArray();

Int16Array();

Uint16Array();

Int32Array();

Uint32Array();

Float32Array();

Float64Array();

Syntax:

ArrayBuffer.isView(p)

Parameters: It accepts a parameter either in the form of typed array or something else.
Return Values:It returns true if the parameter is typed array otherwise return false.

JavaScript code to show the working of ArrayBuffer.isView() function:
Code #1:

<script> 
  
  // Creation of ArrayBuffer having a size in bytes 
  var buffer = new ArrayBuffer(12); 
  
  // Use of ArrayBuffer.isView function 
  A = ArrayBuffer.isView(new Int32Array()) 
  document.write(A); 
  
</script> 

Output:

true

Note: Here output is true because Int32Array is a typed array.
Code #2:

<script> 
  
  // Creation of ArrayBuffer having size in bytes 
  var buffer = new ArrayBuffer(12); 
  
  // Use of ArrayBuffer.isView function 
  A = ArrayBuffer.isView(); 
  B = ArrayBuffer.isView(null); 
  C = ArrayBuffer.isView(undefined); 
  
  // Printing the result 
  document.write(A + '<br>'); 
  document.write(B + '<br>'); 
  document.write(C + '<br>'); 
  
</script> 

Output:

false
false
false

Note:Here output is false because above arguments are not typed array.

My Personal Notes

Recommended Posts:

KANCHAN RAY

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.