Software programing
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Variables are special places to store to store data by declaring it first or after storing a data in it.
It is unusual and non working pre-declaration of variable in JavaScript.
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Okay bro I showed some basics. But I am going pass to variable. I only show u basics work on the details by ur self.
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Spacing
spacing is not big issue in many cases
Example
window.alert("hi");
And
window.alert ("hi");
are the same
spacing inside the brackets or braces have so much change.
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Case sensitive
That means in JavaScript ball and Ball are two different things .(u can see here that JavaScript is unlike HTML since HTML is case sensitive)
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Semi colon (;) are the symbols to end a statement but are not much necessary in JavaScript if u are writing the code statement on separated lines.
example...
var a=10;
var b=30;
The above statement is the same as
var a=10
var b=30
How ever if u need to write the code on the same line u must put the semicolon as the following
var a=10;var b=30;
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Enabling JavaScript
If u still couldn't launch JavaScript ....
Go to setting of the browser the click on "advanced" then tick on "Enable JavaScript"or simply"script" and "JavaScript"
