JavaScript arrayBuffer.slice() property


The arrayBuffer.slice is a property in JavaScript which return the another arrayBuffer containing the contents of previous arrayBuffer from begin inclusive, to end, exclusive in bytes. ArrayBuffer is an object which is used to represent fixed-length binary data.

Difference between property and function in javascript.
Property in JavaScript is nothing but a value whereas method is a function.

Syntax:

arraybuffer.slice(begin[, end])

Parameters Used:

  1. begin :The slicing begins from Zero-based byte index.
  2. end : The slicing ends at this index byte. The new ArrayBuffer will contain all the contents, if the end is found unspecified. It must be valid index range specified for the current array. If the new ArrayBuffer length is found negative then it is fixed with zero.

Return Value:
The property returns a new ArrayBuffer object.
Examples:

Input : uint32View[1] = 31
        myBuffer.slice(4, 12)
        sliced_bu[0]
Output : 31

Input : uint32View[1] = 32
        myBuffer.slice(4, 12)
        sliced_bu[0]
Output : 32

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code

<script>
// create an ArrayBuffer with a size 25 in bytes
var myBuffer = new ArrayBuffer(16);
  
// produces Uint32Array [0, 0, 0, 0]
var uint32View = new Uint32Array(myBuffer);
  
uint32View[1] = 30;
  
// produces Uint32Array [30, 0]
var sliced_buf = new Uint32Array(myBuffer.slice(4, 12));
  
// expected output: 30
console.log(sliced_buf[0]);
< /script>

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Output:

30


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