multiple arguments javascript code example

Example 1: javascript function variable arguments

function foo() {
  for (var i = 0; i < arguments.length; i++) {
    console.log(arguments[i]);
  }
}

foo(1,2,3);
//1
//2
//3

Example 2: javascript function multiple parameters

function sum(...values) {
    console.log(values);
}
sum(1);
sum(1, 2);
sum(1, 2, 3);
sum(1, 2, 3, 4);


function sum(...values) {
    let sum = 0;
    for (let i = 0; i < values.length; i++) {
        sum += values[i];
    }
  
    return sum;
}
console.log(sum(1)); //1
console.log(sum(1, 2)); //3
console.log(sum(1, 2, 3)); // 5
console.log(sum(1, 2, 3, 4)); //10

Example 3: js array as parameter

function myFunction(a, b, c) {//number of parameters should match number of items in your array
  	//simple use example
  	console.log("a: " + a);
  	console.log("b: " + b);
  	console.log("c: " + c);
}

var myArray = [1, -3, "Hello"];//define your array
myFunction.apply(this, myArray);//call function