What is readInt32LE() in the Node.js Buffer Module?

The Buffer Module in Node.js provides access to Buffer objects that represent fixed-length sequences of bytes. readInt32LE() is a method defined in the Buffer Class that reads a 32-bit, little-endian integer from the Buffer object, starting from the specified offset. The prototype of readInt32LE() is as follows:

buf.readInt32LE([offset])

Parameters

offset: Number of bytes to skip before reading. offset must be an integer and lie in the range 0<= offset <= buf.length -4. The default value is $0$.

Return value

A 32-bit, little-endian integer from buf, starting from the specified offset, is returned.

Note: The Buffer Class is accessible within the global scope. Therefore, you do not need to use the require('buffer').Buffer method to import the Buffer Module.

Example

Explanation

In the first line, we create the buffer object buf using Buffer.from(). Then, we display the 32-bit, little-endian integer from buf after skipping 1 byte by passing offset 1 to the buf.readInt32LE() method.