JAVASCRIPT

javascript regex replace all

const p = 'The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?';

console.log(p.replaceAll('dog', 'monkey'));
// expected output: "The quick brown fox jumps over the lazy monkey. If the monkey reacted, was it really lazy?"


// global flag required when calling replaceAll with regex
const regex = /Dog/ig;
console.log(p.replaceAll(regex, 'ferret'));

// expected output: "The quick brown fox jumps over the lazy ferret. If the ferret reacted, was it really lazy?"

replace all with regex

const regex = new RegExp(oldString, 'g');
const replacedWord = stringToBeChanged.replace(regex, newString);