Value should always be constrained to valid step values

[electrawn]

Firefox 3.06, Windows XP 32Bit

Most of the time the slider value will return an integer, on occasional use, especially around the 2 mark, the code will break and return 1.99999998.

This screws up using a jquery wildcard to change the values of divs to show and hide elements. The change event code should hide all non relevant divs and then show() the correct one. I've left debug code in there to output the slider value to console.

I would imagine that the value function probably needs to be run through parseInt() before returning?

Snippet to reproduce:

Watch javascript console for occasional return of 1.99999998

Style from css

#slider {

width: 535px; margin: 15px;

border: 1px solid #AAAAAA; }

.sliderdesc{

height: 200px;

}

<script language="JavaScript" type="text/JavaScript">

$(document).ready(function() {

$("#sliderdesc-<%=slider%>").show();

$("#slider").slider({

value:<%=slider%>, min: 1, max: 5, step: 1,

change: function(event, ui) {

$("div[id*='sliderdesc-']").css("display", "none").filter("#sliderdesc-" + $("#slider").slider("value")).show(); console.info($("#slider").slider("value"));

}

});

<h2>Preference Wizard</h2>

<div class="sliderdesc">

<div id="sliderdesc-1" style="display:none">

<h3>Everything</h3> <p>Desc 1</p>

</div> <div id="sliderdesc-2" style="display:none">

<h3>Custom: Automatic</h3> <p>Desc 2</p>

</div>

<div id="sliderdesc-3" style="display:none">

<h3>Custom: Single Map</h3> <p>Desc 3</p>

</div> <div id="sliderdesc-4" style="display:none">

<h3>Custom: Full Control</h3>

<p>Desc 4 </p>

</div> <div id="sliderdesc-5" style="display:none">

<h3>Nothing</h3> <p>Desc 5</p>

</div>

</div>

<div id="slider" ></div>

<table width="675px"> <thead>

<tr>

<th width="20%"><span class="ui-icon ui-icon-triangle-1-n"></span></th> <th width="20%"><span class="ui-icon ui-icon-triangle-1-n" ></span></th> <th width="20%"><span class="ui-icon ui-icon-triangle-1-n"></span></th> <th width="20%"><span class="ui-icon ui-icon-triangle-1-n"></span></th> <th width="20%"><span class="ui-icon ui-icon-triangle-1-n"></span></th>

</tr>

</thead> <tbody>

<tr>

<td>Everything</td> <td>Custom:<br> Automatic</td> <td>Custom:<br> Single Map</td> <td>Custom:<br> Full Control</td> <td>Nothing</td>

</tr>

</tbody>

</table>

[electrawn]

Picture of firebug console output

[electrawn]

Looks like I am actually on 1.6rc6

The fix may be something along the lines of this in _value:

var val = Math.round(this.options.value);

[scott.gonzalez]

Non-integer values are valid, but only if the min + step combination allow them. Slider needs to be updated to enforce the step constraint. The  HTML5 spec has a good description of how values should be dealt with.

[paul]

Fixed in r2089.