function multiply(a, b = 1) {
return a * b;
}
console.log(multiply(5, 2));
// expected output: 10
console.log(multiply(5));
// expected output: 5
function multiply(a, b = 1) { return a * b;}console.log(multiply(5, 2));// expected output: 10console.log(multiply(5));// expected output: 5