Our JavaScript interpreter is going to have to compute the value of 6 factorial, a function call within a function call within a function call.

And, in fact, I'll do the first and second parts for you.

Now for a quiz.

Here I've written three Python expressions, each one of which is a constant string.

This follows the same 3 step process we saw before create a new image, set its on load result, and then set its source.

This selection goes to the left as far as it can but does not include pindex, so it will be bell.

If you print repr around it, you'll get some extra quotes, and it'll print properly.

Here's an example of how to use this procedure.

And now I have the expressions for function calls, not just decorations, which we had in the

That's called a stack frame.

If its all zeros then A star resorts back to the search algorithm already implemented.

Most of it is contained in this main page handler.

A classic example for the use of assertions is a square root program.

And let's give this a test.

If its format is basically else if it's format HTML use the HTML template.

If, for instance, I have set up the traceit function, which gets called for every line as always.

That's how Fortran does their titles and stuff.

It gives you true if the random value happens to be larger than 0.5 and false if it's smaller.

And what this does is it says Class By Name which just refers to itself.

Let's go through our program and just notice everything we end up using.

Then we make the call to replace spy, passing in spy.

If it's 1 or more arguments, they're going to be expressions separated by commas.

Now, there are two uses of stars and star star.

Parents equals whatever this key. We'll call that k.

Your job now is to write a piece of code that evaluates all these calls.

So I'm going to put all of the output we've gathered up so far from previous calls to document write, and then just turn the value of the argument into a string and paste it on the end.

And we have all the rules for expressions that we used to have before, but now we're going to add function calls.

It's n times the factorial of n 1.

So let's give this a quick run to make sure it works.

We use function calls to access user interaction or generally anything that comes form the environment.

Hail them.

Calling Frank

A call for you.

Has Atlanta called?

We will have for instance a breakpoint in line 9, and possibly another one in line 14.

And he beeped him?

Smaller than I thought they would be.

They're calling all the party animals.

I'm going to extend this such that the test now comes as a parameter.

So that should make a link.

Joints, joint pain

We want the inputs to the first call to be a and b .

If tonight's the night he calls,so be it.

Memory recall

So we get