knockout.js - How to conditionally render a css class with knockoutjs -

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i have html following:

<div class="control-group">     <input type="text" data-bind="value: $data.dealcode" name="dealcode" class="input-mini" /> </div>

however, ifnot: $data.dealcodeisvalid, need render following:

<div class="control-group error">     <input type="text" data-bind="value: $data.dealcode" name="dealcode" class="input-mini" /> </div>

note additional class "error" in div. there way knockoutjs?

something like

<div data-bind="css: {'control-group': true, error: (!$data.dealcodeisvalid)}">

check here more info


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