Java Script Learning Notes




what can be done with JS ?

- not yet another language like Java
- 1995 it was created for netscape browser
- previously the had java applets
- runs on web
- client side
- originally a scripting language


create
- effects
- gaming
- IOT

Full Stack Application
- Youtube [AngularJS]

Examples
- http://matthew.wagerfield.com/parallax/
- https://threejs.org/
- https://www.leapmotion.com/



Press F12 to open developer tools to kick start exploring Java Script.



alert("It works");

 


confirm("Are you ready to press okye ??");





prompt("do u wish to login ?");




No Space Required:
alert("It works");confirm("Are you ready to press okye ??");confirm("Are you ready to press okye ??");

Make sure to reduce the whitespaces and blacnk lines.


JS calculator

Direct entry in console


2+2;

4  (will be displayed )

2-2

0 (will be displayed)

similaryly Multiplication and division

Multiplocation
2*2
4 (will be displayed)

Division
2/2
1 (will be displayed)


Modulo
10%2
0 (will be displayed the remainder)


Order of operation - which operation to be performed first.
50-4*3
26 will be the output


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