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Let's talk about what is JavaScript.

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Well, JavaScript is a high level programming language that is used to add interactivity and dynamic

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functionality to website.

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Let's break down some of the key point here.

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The first one is high level programming language.

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A programming language can be classified as high level or low level programming language.

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So let's explain what is high level programming language?

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A high level programming language is the one that is more abstracted from the hard core and closer to

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human language.

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And this programming language, it hides many of the complexities of the computer system like memory

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management, CPU architecture and etcetera.

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Example of this high level programming language include JavaScript, Python, Ruby C plus plus Java

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and many others.

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And high level programming languages are used or designed to be more readable and understandable for

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humans.

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And they have simple syntax which often looks like English and can be include features such as object

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oriented programming.

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And code written in high level languages needs to be interpreted or compiled into machine learning code.

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Don't worry about these technical terms here.

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The key point here is that high level programming languages are like English.

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The syntax is easy to read and write and it can be memorized.

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All right.

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Now that we know what is JavaScript, let's look at what it does for web pages.

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Let's say that we are developing a car and we are representing this car as a web application.

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And the purpose for this application is to add some functions.

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So before developing a car or web application, let's look at the step.

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Step number one is you're going to have the structure of the application.

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And in this case, it looks like skeleton.

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So for this we use what is called a HTML for this.

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And in English term we often use a HTML as a noun, meaning a name of an object or a person.

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Great.

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Now that we have the structure of our application, in this case our car, we want to make it more beautiful.

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That is where we need what is called CSS.

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Adding some styling to our application to make it more appealing to the eye.

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And in English term we refer CSS as adjective.

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Next step.

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Is that the final stage?

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We want the car to do something.

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That is, to be able to move, to add some interactivity.

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In this case, as you can see, the car is seriously moving.

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Meaning it is dynamic and this is a rule of JavaScript and in English term we refer to it as a verb.

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Meaning it is doing something.

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So in a nutshell, JavaScript adds interactivity and dynamic content to our web page as we see the car

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busy moving.

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All right.

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Now that we have the overview of JavaScript, let's continue on in the next video.