Variables are use to store some values for a temporary time period. They are data container which may change its value. Variables are the basic part of any programming language.
<em>VAR </em>toast;&nbsp; //Declaration of variable named toast toast = 7; // Initialization of variable toast to 7 , now toast stores a number ‘7’ in it alert(toast);&nbsp;
This will alert a number 7.
Lets make a String variable:
Var weby=”I love web toasts”; //we can also declare an initialize a variable together; Alert(weby);
Last time we study a bit about data types and here we are implementing that concept, don’t know how? Let me explain it to you:
</pre> Var toast=7; <pre>
Toast is a variable and its data type is number. Yes every variable have a data type.
Var weby=”I love web toasts”;
Weby is a variable with data type String.
Umm, you seems confuse. Why we should know about data type?
Ok, let dive into it again:
Var a=1+2; Alert(a);
It would alert ‘3’because we are using addition operation above. You can blame me that I am making it complex but believe me its not.
Var a=3, B=5; Var c=a+b; Alert(c); // its result would be 8
Ok, last try
Var b=9; Var c=a+b; Alert(c);
Alright, this was a very brief overview of Variables. Play with variables by yourself now and leave me a comment if you have any problem. I will definitely help you. We are also available for coaching on Skype 😉
See you in next healthy toast.