Node.js Buffer.length Property
Last Updated :
23 Jan, 2023
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The Buffer.length property is an inbuilt application programming interface of class Buffer within buffer module which is used to get the length of this buffer object.
Syntax:
const Buffer.length
Parameters: This property does not accept any parameter.
Return Value: This property returns the length of this buffer object.
Example 1: Filename: index.js
// Node.js program to demonstrate the
// Buffer.length property
// Creating and initializing arraybuffer object
const arrbuff = new ArrayBuffer(16);
// Getting buffer object from existing
// arraybuffer object
const buffer = Buffer.from(arrbuff);
// Getting length of buffer
// by using length property
const length = buffer.length;
// Display the result
console.log("Length is : " + length);
Output:
Length is : 16
Example 2: Filename: index.js
// Node.js program to demonstrate the
// Buffer.length property
// Creating and initializing arraybuffer object
const arrbuff = new ArrayBuffer(16);
// Getting buffer object from existing
// arraybuffer object
const buffer = Buffer.from(arrbuff);
// Getting length of buffer
// by using length property
const length = buffer.length;
// Creating and initializing Int8Array object
const buff = new Int8Array(buffer, buffer.byteoffset, length);
// Display the result
console.log("Int8Arry object :- " + buff);
Output:
Int8Arry object :- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Run the index.js file using the following command:
node index.js
Reference:https://nodejs.org/dist/latest-v12.x/docs/api/buffer.html#buffer_buf_length
