string replace

replace.js

var str = "Hello, John Doe!";

var result = str.replace("John Doe", "Hein Thanth");

// now result is "Hello, Hein Thanth!";

var str = "Kali Linux is for Hackers. Also, Kali Linux, which is Debian based. Black Arch Linux too!";

var result = str.replace("Kali Linux", "Parrot Sec OS");

// now result is "Parrot Sec OS is for Hackers. Also, Kali Linux, which is Debian based. Black Arch Linux too!"
// although the word "Kali Linux" contain twice. Only Replace first Match