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Welcome back, guys, to another lecture today.

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We're going to talk about JavaScript, iOS seven, which was introduced in 2016.

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So it's very easy to understand and grasp.

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The reason is that because Aliki is six, which had a ton of new features coming from year five this

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year, seven has only two new concepts that you need to understand.

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And actually we don't need the text editor to do this.

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So iOS seven has only two new concepts.

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The first one is includes so these that includes method in this can work both on the race and strings.

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So I'm going to create Sprink here and I'm going to say the my name is Rick.

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Hello.

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My name is Rick.

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What is your name and question mark.

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So I can run includes here and I can try for example, finding if it's hello.

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So this will actually give me boolean value, true or false.

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Now if I try to search for example, for one, it will give me back false good.

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Now let's create let's see how this will work with arrays so I can create const my cards and I will

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create this array here and I will say here, Vovo,

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Volvo, BMW, what else we have here.

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Ford and that's pretty much it.

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Now I can run my cars.

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That includes in I can find if it's include BMW.

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Right.

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So it again will return me.

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True.

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So but I can run B.M. like that so or be only can check for one single letter.

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Right.

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So I need to check the entire one, the entire here parameter.

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Nice.

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So that is pretty much what includes does and this is the new edition.

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It's a very easy to grasp.

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Right.

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So this is nothing to do with the way we have done a lot of other things and everything stays.

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See, now the second one is called exponential operator, and it's very simple to use and very simple

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to understand.

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So let's create a function call here.

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Const exp function in here.

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I will pass in a parameter here X and I'm going to create array function, erro function and I will

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say X.

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I use these two stars here and what it this will do for example.

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Now if I pass into this function, into this parameter here value, let me just show you, I'm going

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to say E.S.P exponential function and if I pass two then it will give me it will give me the square

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of that number.

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Right.

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So it will be four.

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Let's clear this one out.

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So yes.

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And I will see for now it will be 16.

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If I say five, it will be twenty five.

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So I'm getting the exponential operator in here.

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I can use it on some functions or calculations that I need.

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So that was two functions that we have done it.

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So the first one was includes it can work on the strings in arrays and the other one is the exponential

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operator so we can write a function like this.

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So if I hit it now, it will see an error re declaration.

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Right.

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So I need to make it like this.

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And now I can still run the function because still it runs inside the memory o k.

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That is pretty much it.

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And I wish you good day and I will see you in the next one.