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JavaScript Introduction to Programming Functions Functions

Posted by Robert Mylne
Robert Mylne
13,708 Points

Functions

I am really struggling to understand arguments in functions. Is there any more resources on this to help as I have watched the video multiple times and are still failing to understand?

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

arguments allow variables to be passed to the function and manipulated inside it. so you could create a function that adds 2 numbers together. 2 variables could be passed to the function as arguments, and then added together inside the function block and returned. so I could write 

function addTwoNumbers(number1, number2)
{
  return number1 + number2;
}

In the case of a function definition, the variables inside the ( ) are referred to as parameters. They are only referred to as arguments when you use the function or call it. So above they are parameters, but below the numbers in the ( ) are arguments:

var sum = addTwo( 1,5 );