Do you know what will be the output of this code? function f(a, b = 2, c) {} console.log(f.length);

What does function.length return in JavaScript?

Do you know what will be the output of this code?

JavaScript

function f(a, b = 2, c) {}
console.log(f.length);

Show answer and explanation

The answer is 1.

length is the number of parameters before the first one with a default (or a rest parameter). b has a default, so counting stops at a.