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This is a section that I'm waiting for to introduce to you, and that is JavaScript functions.

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The backbone of every application lies in the function.

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So what actually a function is?

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So by the time we finish covering everything and the functions, then you can regard yourself as a JavaScript

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developer.

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And to be more precise, web developer.

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So what is a function?

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A function is a piece of code that is written to perform a specific task.

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The key word here is perform specific task.

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Well.

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So let's say that we have an application which keep track of expenses.

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We have a function to add expenses.

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A function to delete expenses, a function to fetch all expenses.

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You can see how a function is and a function are usually self-contained logic that can be reused across

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your code.

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So this makes them very important when it comes to JavaScript programming.

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So that is all about a function, a piece of code that has been cobbled together like we put in a container.

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Then we can reuse that function.

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So in this video we have a look at why functions that is importance of a function.

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But before we get to the importance, you have to look at how we can create a function.

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Then we come back and then talk about.

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Why do we need a function?