const str1 = 'Saturday night plans';
console.log(str1.startsWith('Sat'));
// expected output: true
console.log(str1.startsWith('Sat', 3));
// expected output: false
const str1 = 'Saturday night plans';console.log(str1.startsWith('Sat'));// expected output: trueconsole.log(str1.startsWith('Sat', 3));// expected output: false