JQuery Range Input Listener

问题:

Hey having a little trouble jquery and the hmtl5 range. I'm try to get the values as they changed but the event listener is not capturing it. Currently my code is:

HTML

html += '<li>Apply Credits: <input type="range"  min="0" max="'+credits+'" name="discount_credits" id="discount_credits" /> <span>'+credits+'</span></li>'

And the JS is:

$('#discount_credits').mousewheel( function() { 
        alert('it changed!'); 
        alert('new value = ' + $(this).val()); 
    });

I've also tried

$('#discount_credits').change( function() { 
            alert('it changed!'); 
            alert('new value = ' + $(this).val()); 
        });

Neither seem to work. Am I doing something wrong?

回答1:

$('input[type=range]').on('input', function () {
    $(this).trigger('change');
});

This fires the change event on every input event.

回答2:

Does not seem to have any problem on HTML5 <input type="range"> using change.

See: http://jsfiddle.net/DerekL/BaEar/33/

回答3:

I assume your span has an id: <span id="slidernumber">...</span> Lets also assume that you have a few sliders, and you want to see a text change if any of them were moved:

<li>
Apply Credits1: 
<input type="range" min="0" max="100" 
name="discount_credits1" id="discount_credits" 
/>
</li>

<li>
Apply Credits2: 
<input type="range" min="0" max="100" 
name="discount_credits2" id="discount_credits" 
/>
</li>

<span id="slidernumber">50</span>

Try this:

$(document).ready(function(){
  $("[type=range]").change(function(){
    var newval=$(this).val();
    $("#slidernumber").text(newval);
  });
});

http://jsfiddle.net/MahshidZeinaly/CgQ5c/

Now lets assume that you have a few sliders, but you want to see a text change if a particular one of them were moved. (I assume it because the range input is inside li tag, and you gave it a name):

<li>
Apply Credits1: 
<input type="range" min="0" max="100" 
name="discount_credits1" id="discount_credits" 
/>
<span id="slidernumber">50</span>
</li>

<li>
Apply Credits2: 
<input type="range" min="0" max="100" 
name="discount_credits2" id="discount_credits" 
/>
<span id="slidernumber">50</span>
</li>

Try this:

$(document).ready(function(){
  $("[type=range]").change(function(){
    var newv=$(this).val();
    $(this).next().text(newv);
  });
});

http://jsfiddle.net/MahshidZeinaly/2pe7P/1/

回答4:

The on change event seems to be working correctly for me: http://jsfiddle.net/zV3xD/7/

<input type="range"  min="0" max="100" name="discount_credits" id="discount_credits" />

<span id="newValue" value="0">0</span>

$('#discount_credits').change( function() {
    var newValue = this.value;        
    $('#newValue').html(newValue);
});​

Or you can try something like this:

<form oninput="result.value=parseInt(a.value)">
    <input type="range" name="a" value="50" /> =
    <output name="result">0</output>
</form>

Using the output example here: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/output

回答5:

Several test and bug fixed!

$('input[name=form_range]').change('mousestop',function () {

});