Hello everyone.
Welcome to this vigil on what is javascript java script is is scripting programming language that allows
you to write programs that runs inside the web browser and ads interactivity and behaviour to a website.
You may have heard of the programming language called Java.
Java is not related to javascript.
Java was very popular when javascript was first introduced in 1995 and for marketing reasons was named
to take advantage of Java's popularity.
Hence the name javascript which it has since been stuck with the room name for javascript is much script
which was named after the MA organization that is responsible for the language standard.
There has been several versions of my script the most recent version is Version 6 which is not yet adopted
by or major Web browsers.
Version 3 is what is currently adopted by all major Web browsers.
Thus standard web technologies has three main layers.
The first layer is see hastier melt.
This is the mark-up language that we use to structure and give meaning to our Web content.
For example would define in paragraphs headings and data to embed in images videos and all dues to it
paints.
The second layout is the csx which is the style rules that we chose to apply styling to our male content.
For example this setting of the background colour or the positioning of the various images the way the
pages lay out the type of fonts he chose for the content.
All that is done using skill sets.
The third layer is javascript which is a script in programming language that enables you to control
things like multimedia animated images and any interaction on the web page.
This is Facebook a very popular website.
What you can see is the combined output of three distinct layers of code hastier Mail says javascript
put together by the browser when you visit a website but browse up down the hastier email first and
dexy's its content den downloads and that applies any services to the hastier mail funnel by download
and running of javascript javascript is kept running inside the web browser in the background just to
wait for any interaction to occur.
An example of interaction can be entering your e-mail or password.
In this video I covered what is Javascript in the next video.
I will be talking about javascript syntax.
Thank you for taking the time to watch this video.