demo_met_buffer_copy.js:
var buf1 = Buffer.from('abcdefghijkl'); var buf2 = Buffer.from('HELLO'); //Copy buf2 into parts of buf1: buf2.copy(buf1, 2); console.log(buf1.toString());
C:\Users\My Name>node demo_met_buffer_copy.js
abHELLOhijkl