026-Arguments-in-function.js

/*
author : Jaydatt Patel
arguments is an array-like object accessible inside functions that contains the values of the arguments passed to that function.

The arguments object is a local variable available within all non-arrow functions. You can refer to a function's arguments inside that function by using its arguments object. It has entries for each argument the function was called with, with the first entry's index at 0.

Note : can not be use with arrow => function;

*/

console.log("-----------1----------");
function fun1(a, b, c) {
  console.log("arguments.length :", arguments.length);
  console.log(arguments[0]); // first argument
  console.log(arguments[1]); // second argument
  console.log(arguments[2]); // third argument
}

fun1(1, "Hello", 3.14);

// Note : can not be use with arrow => function; So it will generate error.
console.log("-----------2----------");
var fun2 = (a, b, c) => {
  console.log("arguments.length :", arguments.length);
  console.log(arguments[0]); // first argument
  console.log(arguments[1]); // second argument
  console.log(arguments[2]); // third argument
};

fun2(1, "Hello", 3.14);