how ti check string starts with injs code example

Example 1: js start with

const str = 'Linux is great';
console.log(str.startsWith('Linux is'));// true
console.log(str.startsWith('Windows is'));// false
console.log(str.startsWith('ux is', 3));// true

Example 2: javascript word start with

const str = "Saturday night plans";
const res = str.startsWith("Sat");
console.log(res); //> true