CODEWITHSUNDEEP
javascriptjqueryvariables
Yusaf Khaliq
Yusaf Khaliq

Reputation: 3393

change variable value outside function

$(".outerdiv .innerdiv").hover(function(){
    var variable = $(this).index();
});
var variable = 3;
$("span").html(variable);

the original html of <span> is set as 3 using jquery but when hovering over an .innerdiv i want it to change to its index value by changing the variables outside the function to the index value of the specific .innerdiv that was hovered on. ​http://jsfiddle.net/eEUeT/9/

<div class="outerdiv">
    <div class="innerdiv">1</div>
    <div class="innerdiv">2</div>
    <div class="innerdiv">3</div>
    <div class="innerdiv">4</div>
    <div class="innerdiv">5</div>
</div>    
<span></span>​

I have tried http://jsfiddle.net/eEUeT/11/ this does not have a set orginal value of 3 however.

AND i understand by changing the html to <span>3</span> and using the jquery below will work but i would rather learn how to do it the way i asked

$(".outerdiv .innerdiv").hover(function(){
    var variable = $(this).index();
$("span").html(variable);
});

Upvotes: 2

Views: 1066

Answers (1)

Jasper
Jasper

Reputation: 75993

If you want to manipulate an element, you have to select it... you can't assign a value to a variable and expect the DOM element to update itself. As you stated though, it's easily enough done like this:

//set the initial HTML for the span element(s)
var $span = $('span').html(3);

$(".outerdiv .innerdiv").hover(function(){

    //update the span element(s) HTML to the index of the hovered-over `.innerdiv` element
    $span.html($(this).index());
});

​

This places the index of the hovered-over .innerdiv element as the HTML of any <span> elements.

Here is a demo: http://jsfiddle.net/eEUeT/14/

Upvotes: 1

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