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Hello and welcome home.

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This video I'll be introducing you to Javascript perris.

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What is Harry and Harry is basically a structure that allows you to store multiple values in one single

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reference.

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Basically what that means is that it stores multiple values in a single variable.

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So I am very special variable which can hold more than one value at a time in comparison to a variable

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that can only hold one value at a time.

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An example of an array is this here for example create an array code.

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My data an easy cause to assign the values.

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You can tell is an array because the values of an array are enclosed in square brackets.

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Also you can have different data types in an array.

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In this example here I have a number and string data type values in salary.

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So let's create a simple Harry using the whip console to create a.

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You have to create the variable first so you just type in V are to create or define the variable to

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a space followed by the name you want to call a variable and when the call mine my my data then use

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it equals to sign to create the array.

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I use the open square brackets and you add the values or the elements in the hurry.

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You can mix datatypes in my example here.

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I'm going to mix the date and time with this string and or so in no sample a number and a shrink.

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I'm going to add another number and then I'll add another string.

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When you are using a string don't forget to include them in quotes and where you are using the phrase

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you separate each of the elements in the array by comma.

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You can see a comma here and comma here only the last value or element that does not require com.

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So now that we've created an array to call the aerie we just need to call it by his name which is my

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data and it would display the information.

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The information here tells you that we've got an array of four elements which is one two three four

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and it gives you the values.

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If I expand this he will see all these figures here.

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They're known as index the way you access the elements in an array is via their index.

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So the very first element of value has indexed zero.

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The next one will have index 1 and so on you can see here index 0 belongs to 7 index 1 belongs to John

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indexed to plunks the 70 index 3 belongs with Jane and so on till you hear the length of the Harry is

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four.

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Because it has four elements or values inside the rig.

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So if I wanted to ask says Jane what the way we do that would be my data

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and then square brackets and I type in three because that's the index for Jane press enter and give

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me the value of Jane because Jane has an index of three so you can see here from the index.

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So always remember that where you're trying to access the values in an array you have to access them

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using the index and index starts from zero points.

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When you work with arrays it is easy to remove elements and also add new elements to an array using

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a process called popin and pushing.

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If you want to add elements you use a method called push in to add an element.

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And if you want to remove you use a method called popin so poplin will remove pushing will add an element

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to an array.

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So let's add an element to hiree and the way we do that we call the tree his name which is my case is

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called My data.

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And then you add a dot and type in push and then imperent this is you specify the value you're trying

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to push into the every sphere.

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I'm trying to add in number 10 into the Harry and I press Enter so we can see it now.

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Is now showing that the tree has five values.

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So if I want to call this every game called my data it will now show that the length is 5 C because

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I have now added a new element which is this number 10 here.

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So if I expand that you can see the index in new index for which is number 10.

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If I wanted to remove an element from Harry.

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Okay so I can do that using the pop method that pop meant it will remove the value of just less from

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all the value I have just had it so I type in my data.

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Pop and this will remove the very last value I have just added.

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He can see here tells me 10 has been removed so far now this Harry now is should go back to your original

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value which is a narey of 4.

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See here this is the original letter.

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That's basically how you can add more an element from an array.

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So this concludes this brief introduction to Chama script arrays.

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There are other types of arrays and there are so many things you can do using have a script read.

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This is just an introduction to what an array is.

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Thank you for watching and by phone.