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[comathi]

Hi everyone,

Today, I'll be giving you another quick tutorial (I promise it won't be as long as the last one :lol: ).

This time, we'll be looking at JavaScript, and how you can use scripts to generate random numbers. You can use this, for instance, in a raffle, or possibly selecting random images for a banner by looking at the number that was generated. It's all up to you

The JavaScript Math.random() function generates a decimal number (floating point) between 0.0 and 1.0 . Generally, you would want a wider range, so for this tutorial, we'll be multiplying the value by 10 to give us a range of 0.0 to 10.0 .

Also, we'll round up our numbers with the Math.ceil() function, which will bring the range back up to 1-10 (no floating point numbers).

Let's start by opening up Notepad (in Windows) or any other program you might use to edit JavaScript files.

Now, you'll first want to insert an init function, since we'll be declaring variables and using them.

Code: Select all

function init()
{

}
window.onload=init;

Inside the function, we'll insert the line of code we'll be using to generate the number:

Code: Select all

var randnum="";
randnum=Math.ceil( Math.random()*10);

What this does is declare a variable named 'randnum', and then gives it a rounded, random value, which is then multiplied by 10.

That's pretty much it. I hope this will have been of use, enjoy!

[MrAksel]

You stole my tutorial lol, ill guess I have to make something else :(

[comathi]

Ohh, sorry. I did not know you had already posted that :(

[MrAksel]

I haven't, It was only an idea

[comathi]

Oh ok. Well sorry anyways. I didn't mean to take your idea.

[MrAksel]

You couldn't know Im making a C++ tut instead, and maybe some random numbers in PHP :lol: