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javascriptjqueryvariablesloopswhile-loop
Don Munter
Don Munter

Reputation: 633

Use javascript while loop to make variables?

There are topics about this, but not realy pointed at my problem.

I'm using iScroll, a jquery plugin. For every scrollbox on my page I need to assign a unique variable. In this case it's gonna be myScroll1, myScroll2 etc.

To make it easily editable, I want the variables to be automatically generated giving the number of div's in wich the scrollbars are in. So, let's say I have 2 divs with these scrollbars. I use the .size() method to count the divs. Then I want a while loop to make the variables. I now have something like this:

var i = 0;
var item_number = $(".portfolio_item").size();

var myScroll = [];
while( i < item_number ) {
    myScroll[i];
    i++;
}

Sooo, I don't want anything generated in the HTML, just the variables. They have to become myScroll1, myScroll2, myScroll3. Depending on the amount of .portfolio_item divs.

I have tried this with php, that's a bit easier for me. But!! I can't use javascript variables in php. So I can't count the amount of .portfolio_item divs :( Thank you! :)

Upvotes: 1

Views: 832

Answers (1)

epascarello
epascarello

Reputation: 207521

Bad practice, but you can do this

var i = 0;
var item_number = $(".portfolio_item").size();

while( i < item_number ) {
    window["myScroll" + i] = "foo" + i;
    i++;
}

alert(myScroll0);

better practice is to use a namespace and add to it.

var i = 0;
var item_number = $(".portfolio_item").size();

var foo = {};
while( i < item_number ) {
    foo["myScroll" + i] = "foo" + i;
    i++;
}

alert(foo.myScroll0);

Upvotes: 2

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