/*
  Regular Expression

  - replace
  - replaceAll
*/

let txt = "We Love Programming And @ Because @ Is Amazing";
console.log(txt.replace("@", "JavaScript"));
console.log(txt.replaceAll("@", "JavaScript"));
let re = /@/ig;
console.log(txt.replaceAll(re, "JavaScript"));
console.log(txt.replaceAll(/@/ig, "JavaScript"));