// the g is to show it's a global change, not one-time change.
str.replace(new RegExp('hello', 'g'), 'hi');
const search = 'duck'
const replaceWith = 'goose';
const result = 'duck duck go'.replaceAll(search, replaceWith);
result; // => 'goose goose go'
const p = 'Its going to rain today and its going to rain tomorrow';
// Example of replacing all occurrances
// g = global search, which searches all instances
// i = case insensitive, which will match 'a' with 'A'
const regex = /rain/gi;
// expected output: "Its going to snow today and its going to snow tomorrow"
// Example of replacing the first occurance
// expected output: "Its going to snow today and its going to rain tomorrow"