Node.js Buffer.writeIntLE() Method Last Updated : 13 Oct, 2021 Comments Improve Suggest changes Like Article Like Report Buffer is a temporary memory storage which stores the data when it is being moved from one place to another. It is like an array of integers. The Buffer.writeIntLE() method writes the byteLength bytes of values to Buffer using Little Endian format to the Buffer object. Syntax: Buffer.writeIntLE( value, offset, byteLength ) Parameters: This method accept three parameters as mentioned above and described below: value: It holds an integer value number which to be written to the Buffer. offset: It holds an integer value i.e. number of bytes to skip before starting to write into the buffer. The value of offset lies 0 <= offset <= buf.length - byteLength. byteLength: It holds the number of bytes to write into the buffer. The value of byteLength lies 0 < byteLength <= 6. Return Value: It returns an integer value offset plus the number of bytes written. Example 1: javascript // Node program to demonstrate the // Buffer.readInt16LE() Method // Allocating buffer from array var buf = Buffer.from('GeeksForGeeks'); buf.writeIntLE('ee', 0, 5); // Printing allocated buffer console.log(buf); console.log(buf.toString()); Output: <Buffer 00 00 00 00 00 46 6f 72 47 65 65 6b 73> ForGeeks Example 2: javascript // Node program to demonstrate the // Buffer.readInt16LE() Method // Allocating buffer from array const buf = Buffer.allocUnsafe(4); buf.writeIntLE(0xabcdef, 0, 4); // Printing allocated buffer console.log(buf); Output: <Buffer ef cd ab 00> Note: The above program will compile and run by using the node index.js command. Reference: https://nodejs.org/api/buffer.html#buffer_buf_writeintle_value_offset_bytelength Comment More infoAdvertise with us 08shubhambhandari08 Follow Improve Article Tags : Web Technologies Node.js Node.js-Buffer-module Similar Reads Node.js Buffer.copy() Method Buffer is a temporary memory storage that stores the data when it is being moved from one place to another. It is like an array of integers. The Buffer.copy() method simply copies all the values from the input buffer to another buffer. Syntax:buffer.copy( target, targetStart, sourceStart, sourceEnd 2 min read Node.js Buffer.includes() Method Buffer is a temporary memory storage which stores the data when it is being moved from one place to another. It is like an array of integers. The Buffer.includes() method checks whether the provided value is present or included in the buffer or not. 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