The code inside a function often needs information passed to it.
You can define this information by adding parameters to the declaration allowing you to pass in arguments.
When a variable is passed to a subroutine or function it is called an argument.
The value used in place of the parameter when we make the procedure call is called an argument.

too many - ignored
too few - undefined

function add() { 
   var tempValue = 0;
   for (I = 0; I < arguments.length; i++)
      tempValue += arguments[i];
   return tempValue;
var myTotal = add(1,2,3,4,5,6);

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