Node.js | Buffer.writeInt8() Method
The Buffer.writeInt8() method is an inbuilt application programming interface of class Buffer within the Buffer module which is used to writes value to an allocated buffer at the specified offset.
Buffer.writeInt8( value, offset )
Parameters: This method accept two parameters as mentioned above and described below:
- value: This parameter specifies number or value to be written into the buffer. Behavior is undefined when value is anything other than integer value.
- offset: It specifies the number of bytes to skip before starting to write or simply signify the index in the buffer. The value of offset lies 0 <= offset <= Buffer.length – 1. Its default value is 0.
Return Value: This method returns an integer value that is the sum of offset and number of bytes written.
Below examples illustrate the use of Buffer.writeInt8() method in Node.js:
1 2 3 4 <Buffer 14 80 fd 7f>
Before writing into buffer: <Buffer 98 98gt; 1 2 After writing into buffer: <Buffer 60 bb>
Note: The above program will compile and run by using the
node index.js command.