Question

I know that a parameter is a variable passed to a function and gives value to the argument in the function, but I’m having trouble understanding:

What is the main difference between “arguments” and “parameters” in javascript?

Answer 1

The parameters are the aliases for the values that will be passed to the function. The arguments are the actual values.

var foo = function( a, b, c ) {}; // a, b, and c are the parameters

foo( 1, 2, 3 ); // 1, 2, and 3 are the arguments