Question

How to use a function with dynamic number of arguments in JavaScript

Answer 1

function f(...args) {
    console.log(args);
    sum = 0;
    for (var i = 0; i < arguments.length; i++) {
      sum += Number(arguments[i]);
    }
    return sum;
}

console.log(f(1, 4, 5, 7, 3));



/*
run:

[ 1, 4, 5, 7, 3 ]
20

*/

 

70+ SQL courses for beginners and professionals

Answer 2

function f(/*...*/) {
    sum = 0;
    for (var i = 0; i < arguments.length; i++) {
      sum += Number(arguments[i]);
    }
    return sum;
}

console.log(f(1, 4, 5, 7, 3, 1));



/*
run:

21

*/

 

70+ SQL courses for beginners and professionals