Instructions for the buffer.fill method in node.js

method description:

Populate buffer with custom data.

syntax:

buffer.fill(value, [offset], [end])

receive parameters:

value                  

offet                   fill the starting position of the data, without specifying the default of 0

end                       the end of the fill data, not specifying the default length of buffer.

Example:

// example 1 , do not specify the starting and ending position of the fill content 

var b = new Buffer(50);

b.fill("h");

 

// example 2 Specifies the starting and ending position of the fill content 

var b = new Buffer(50);

var len = b.length;

b.fill("h" , len-1 , len);