The typedArray.subarray() is an inbuilt function in JavaScript which is used to return a part of the typedArray object.
Syntax:
typedarray.subarray(begin, end)
Parameters: It accepts two parameters which are described below:
- begin: It specifies the index of the starting element from which the part of the given array to be started. It is optional and inclusive.
- end: It specifies the index of the ending element up to which the part of the given array to be included. It is optional and exclusive.
Return value: It returns a new array which is formed from the given typedArray object.
Code #1:
<script> // Creating a new typedArray Uint8Array() object const A = new Uint8Array([5, 10, 15, 20, 25, 30, 35 ]); // Calling subarray() functions B = A.subarray(1, 3) C = A.subarray(1) D = A.subarray(3) E = A.subarray(0, 6) F = A.subarray(0) // Printing some new typedArray which are // the part of the given input typedArray document.write(B +"<br>"); document.write(C +"<br>"); document.write(D +"<br>"); document.write(E +"<br>"); document.write(F +"<br>"); </script> |
Output:
10,15 10,15,20,25,30,35 20,25,30,35 5,10,15,20,25,30 5,10,15,20,25,30,35
Code #2:
When index are in negative then elements get accessed from the end of the typedArray object.
Below is the required code which illustrates this negative indexing concept.
<script> // Creating a new typedArray Uint8Array() object const A = new Uint8Array([5, 10, 15, 20, 25, 30, 35 ]); // Calling subarray() functions B = A.subarray(-1) C = A.subarray(-2) D = A.subarray(-3) E = A.subarray(3) F = A.subarray(0) // Printing some new typedArray which are // the part of the given input typedArray document.write(B +"<br>"); document.write(C +"<br>"); document.write(D +"<br>"); document.write(E +"<br>"); document.write(F +"<br>"); </script> |
Output:
35 30,35 25,30,35 20,25,30,35 5,10,15,20,25,30,35
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