How to call external javascript from URL inside function
Question
I'm will try to make my previous question a little more clearer.
So I have to CPA offer from my CPA network using tag.
<script type="text/javascript" src="https://megadownloder.com/script_include.php?id=372715"></script>
and
<script type="text/javascript" src="https://megadownloder.com/script_include.php?id=372716"></script>
Now, I want it to randomly call and choose between the two when the user click the download button.
Example scenario:
When a user clicked download button, the <script type="text/javascript" src="https://megadownloder.com/script_include.php?id=372715"></script> will be called.
When a new user clicked download again the <script type="text/javascript" src="https://megadownloder.com/script_include.php?id=372716"></script> will show.
In ramdom manners.
I hope I make my question clear and you guys can help me. Thank you very much.
2 answers
solution1
1 2015-09-21 07:48:13
Just give your script tag an id and then read the src attribute. With slice cut of the last character, and add 5 + (0 or 1 random) to the string again. So the result will be 372715 or 372716 as the id.
If there is no JS active, the src is still valid, but only with this id: 372715
As a side note:
This won't work in your case. The time you manipulate the script src attribute, the script was already loaded. So you should do this on server side.
var dlScr = document.getElementById('dl-script'); dlScr.src = dlScr.src.slice(0, -1) + (5+Math.round(Math.random()));
<script id="dl-script" type="text/javascript" src="https://megadownloder.com/script_include.php?id=372715"></script>
solution2
0 ACCPTED 2015-09-21 06:53:47
You just need to round it up using Math.round . Math.random will give you a number between 0 and 1 . Rounding it will ensure it will be 0 or 1 . After that you can use it strait in the if statement, because 0 is false , and 1 - and everything not 0 actually - is true , in case of numbers. By negating you could get true / false instead: !(Math.round(Math.random())) , of course in reverse order, but because it's random, it does not matter. But if that bothers you just add extra ! to negate it again like: !!(Math.round(Math.random())) .
But if you need more than two outcomes, just multiply Math.random by the number of outcomes minus one. For example for a three way you could use: Math.round(Math.random() * 2) . But then you'll have to use if statement like in your example.
In case you need 1 or 2 as outcomes, just add one to the random number like: Math.round(Math.random() + 1) . This will return 1 or 2 .
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
function chose() {
// Rounding up like: Math.round(Math.random()).
// Will return 0 or 1.
// By negating you could get true/false instead:
// !(Math.round(Math.random()))
// !0 > true
// !1 > false
// For a three way (or more) random switch use:
// Math.round(Math.random() * [ways - 1]).
// Will return 0, 1 or 2.
// For a case where you want 1 or 2 as results:
// Math.round(Math.random() + 1).
// Will return 1 or 2.
return Math.round(Math.random() + 1);
}
function GetResult() {
if ( chose() === 1 ) {
OfferOne();
} else {
OfferTwo();
}
}
function loadScript ( id ) {
$('<scr'+'ipt type="text/javascript" src="https://megadownloder.com/script_include.php?id=' + id +'"></scr'+'ipt>').appendTo(document.head);
}
function OfferOne() {
loadScript(1000000);
}
function OfferTwo() {
loadScript(2000000);
}
</script>
If your code uses document.write() and you do not want it to overwrite the whole page if called after DOMReady , to be safe put the whole script above into the <head> , and use this loadScript function instead, to ensure synchronicity!
<script>
function loadScript ( id ) {
document.write('<scr'+'ipt type="text/javascript" src="https://megadownloder.com/script_include.php?id=' + id +'"></scr'+'ipt>');
}
</script>
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