javascript - Why last element always fired on hover? - Stack Overflow

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Fiddle: /

As you can see from the fiddle, I want to change color of span when hover on it, but somehow even I hover any in the first three element, the hover event just apply for the last span.

HTML

<p class="p">
    <span>Span 1</span>
</p>

<p class="p">
    <span>Span 2</span>
</p>

<p class="p">
    <span>Span 3</span>
</p>

<p class="p">
    <span>Span 4</span>
</p>

jQuery:

$('.p').each(function() {
    $span = $(this).children('span');
    $span.hover(
        function() {
            $span.css('color', 'red');
        },
        function() {
            $span.css('color', 'blue');
        }
    )
});

Fiddle: http://jsfiddle/vretc/

As you can see from the fiddle, I want to change color of span when hover on it, but somehow even I hover any in the first three element, the hover event just apply for the last span.

HTML

<p class="p">
    <span>Span 1</span>
</p>

<p class="p">
    <span>Span 2</span>
</p>

<p class="p">
    <span>Span 3</span>
</p>

<p class="p">
    <span>Span 4</span>
</p>

jQuery:

$('.p').each(function() {
    $span = $(this).children('span');
    $span.hover(
        function() {
            $span.css('color', 'red');
        },
        function() {
            $span.css('color', 'blue');
        }
    )
});

• javascript
• jquery
• jquery-selectors
• error-handling
• onhover

Share Improve this question Follow asked Apr 30, 2013 at 13:00 user2335889user2335889 2

• Does your actual markup has more than one span per paragraph? – Bergi Commented Apr 30, 2013 at 13:10
• 1 Is there any reason why you wouldn't do this with plain old css? – excentris Commented Apr 30, 2013 at 13:30

Add a ment  | 

7 Answers 7

Sorted by: Reset to default 6

Add var before $span:

var $span = $(this).children('span');

Currently, you're declaring a global variable, which will be overwritten at each iteration in the loop.

Updated Demo

You have only one global $span variable which after the loop will contain the last iterated element. Instead, make the variable local with a var declaration:

$('.p').each(function() {
    var $span = $(this).children('span');
    $span.hover(
        function() {
            $span.css('color', 'red');
        },
        function() {
            $span.css('color', 'blue');
        }
    )
});

There is no need for the .each()

You can try this:

$('.p').children('span').hover(
        function() {
            $(this).css('color', 'red');
        },
        function() {
            $(this).css('color', 'blue');
        });

check fiddle here

$("p span").hover(function(){

  $("span ").css("color","red");
}).mouseout(function(){
$("p span ").css("color","black");
});

Please check here http://jsfiddle/VREtC/2/

  $('.p').hover(
        function() {
            $(this).css('color', 'red');
        },
        function() {
            $(this).css('color', 'blue');
        }
    )

If you want to make your code work, make $span a closure variable by using var

$('.p').each(function() {
    var $span = $(this).children('span');
    $span.hover(
        function() {
            $span.css('color', 'red');
        },
        function() {
            $span.css('color', 'blue');
        }
    )
});

Demo: Fiddle

try this

  $('.p').each(function() {
   var $span = $(this).children('span');
   $span.hover(
    function() {
        $(this).css('color', 'red');
    },
    function() {
        $(this).css('color', 'blue');
    }
  )
});     

or without the loop (which is not required at all )

 $('.p').children('span').hover(
    function() {
        $(this).css('color', 'red');
    },
    function() {
        $(this).css('color', 'blue');
    }
  )
});     

fiddle here

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