javascript replace
let startText = "Yes, I said yes, it is, yes."
// Replace with no modifiers
let newText = startText.replace("yes", "no")
console.log(newText) // "Yes, I said no, it is, yes."
// Replace with 'g'-global modifier
newText = startText.replace(/yes/g, "no")
console.log(newText) // "Yes, I said no, it is, no."
// Replace with modifiers 'g'-global and 'i'-case insensitive
newText = startText.replace(/yes/gi, "no")
console.log(newText) // "no, I said no, it is, no."
const p = 'dog dog cat rat';
const regex = /dog/gi;
console.log(p.replace(regex, 'cow'));
//if pattern is regular expression all matches will be replaced
//output: "cow cow cat rat"
console.log(p.replace('dog', 'cow'));
// If pattern is a string, only the first occurrence will be replaced.
//output: "cow dog cat rat"