String replacement in javascript for {0}, {2}...{n} values in string

string-replacement.js

//Using string replace
const x = 'hello {0}, my name is {1}';
const y = ['world','guy'];
const z = x.replace(/\{\d+\}/g, (match) => (y[match.replace(/\{|\}/g,'')]));
console.log(z);

// Using for each
let s = 'hello {0}, my name is {1}';
y.forEach((value,index) => { s = s.replace('{'+index+'}',value)})
console.log(s);