rest_parameter.js

function sum(...theArgs) {
  return theArgs.reduce((previous, current) => {
    return previous + current;
  });
}

console.log(sum(1, 2, 3));
// expected output: 6

console.log(sum(1, 2, 3, 4));
// expected output: 10


// --------------------------------------------------------------------
function myFun(a,  b, ...manyMoreArgs) {
  console.log("a", a)
  console.log("b", b)
  console.log("manyMoreArgs", manyMoreArgs)
}

myFun("one", "two", "three", "four", "five", "six")

// Console Output:
// a, one
// b, two
// manyMoreArgs, ["three", "four", "five", "six"]

// --------------------------------------------------------------------

const mSum = (num1, num2, ...args)=>{
	console.log(num1);
	console.log(num2);
	console.log(args);
	let sum = num1 + num2;
		for(let i=0; i<args.length; i++){
		sum += args[i]
		}
}
mSum (1,2,3,4,5,6);

// ------------------------------------------------------------------------