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Hey there, welcome back! In this quick video I just want to go over the terminology that we've been using

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again.

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I'm just going to repeat it, so that you really have it nailed.

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The first one that we've learned about is the idea of 'function declaration' and 'function declaration' is a

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way for us to create functions

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like this.

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We also learned about 'function expression' and 'function expression' is a way for us to create functions

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with a variable like

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this.

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And 'function expressions' can also have names.

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Or it could be an anonymous function like this.

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You're more likely to encounter this than with names.

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But I want to show you both of those.

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OK.

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What else do we have?

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We also have this idea of 'expression' and an 'expression' is...

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Well, this actually gives it a good-good overview and 'expression' is something that denotes a value.

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So, '1+3;' is an 'expression' and we end 'expressions' with semicolon.

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If we do 'var a = 2;' that's an 'expression'.

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If we're returning something from a function, we're returning 'true',

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that's an expression. So an 'expression' is something that produces a value.

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OK. How do we make a function perform that action?

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Well, we call that 'calling' or 'invoking' a function.

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And we do that by doing 'alert'.

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And then the brackets or we can do something like 'newFunction', 'param1', 'param2' and we call

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or invoke a function this way. We also assign a variable and we do that by, well, we assign 'var a = true;' 

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OK. We also learn about 'function vs. methods'.

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Or method and a function is something like

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'thisIsAFunction'

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A 'method' is something that is inside of an object, like 'thisIsAMethod'.

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So the way we access them is different.

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A 'function' is accessed like this, a 'method' is accessed with a 'dot' in front of it.

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And there you have it: a few terminologies that I've been using that

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hopefully, you've learned them by now, but wanted to recap everything, so that it really really sticks.

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And this should make everything more clear.

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I'll see you in the next one.

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Bye-Bye