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Now that length property is also interesting

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because it does not just exist on strings,

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but also on arrays.

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Let's say we have an array,

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either created just in time like this, when we need it

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or stored in a variable like hobbies.

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And then here I'll have sports and cooking.

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And if I now use this array and I add a dot on this,

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then I also get a bunch of methods

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and properties there as well,

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including this length property.

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And this length property then will tell us

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how many items are in this array.

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So in this case for hobbies, we have two elements in there.

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And hence, if I save this, I get two as a result,

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since I have two items in that array.

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And of course,

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there's kind of a relation between length on a string

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and length on an array.

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You could say that a string is a bit like an array.

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It's technically not exactly the same,

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but a string of course,

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is a collection of characters,

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an array is a collection of any kind of values.

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That's why we have length on both.

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Now on our array, if I, again, add a dot after hobbies,

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we also have many methods here,

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like push or reduce or sort,

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but these are a bit more advanced and therefore,

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we will not explore them right now.

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I just wanted to highlight this length property

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since it is very useful,

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we will need it later in the course,

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and in many programs you are going to write,

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you probably will also have some scenarios where you want to

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count characters or elements in an array,

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and that's why length can be useful.

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And that's it for these operations and values

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and what you can do with them for the moment.

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You will see a lot of these operations and a lot of these

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properties and so on being used throughout this course.

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And that's why I wanted to give you a summary and an

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overview of these important operations here.