Suppose I have a function
function foo(a, b, c)
{
// ...
}
that I want a button to call. I know that the way to call foo if it were a parameterless function would be
onclick="foo()"
but what is the way to do it when the function has parameters? Is it simply
onclick="foo(a,b,c)"
????
That seems awkward to have a string that gets interpreted as a function call. And does that even work? Or what is the way to do what I'm trying to do?
Your example would be the correct way to do it, assuming a, b, and c are variables defined in the window scope. To pass specific values for a, b, and c you'd do something like onclick="foo('bar', 'baz', 'quux')". The "magic" form onclick="foo(event)" will pass in the Event object containing details about e.g. what button was clicked and where.
You can't call without parameters, unless you do this :
function foo(/*a,b,c*/){
some stuff
}
Or
function foo(){
some stuff
}
Or
onclick="foo(a,b,c)"
So you assign some value to use the function.
