How to fill form with JSON?

Question

I get ajax response as JSON and need to fill a form with it. How to do that in jQuery or something else ? Is something better than using $(json).each() ?

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Answer 1

jQuery Populate plugin and code proposed by @Mathias inspired me to make my own plugin:

Here my myPopulate plugin code. It use attr parameter as name of elements attribute on to use for identifying them.

(function($) {
    $.fn.myPopulate = function(json, attr) {
        var form = $(this);
        $.each(json, function(key, value) {
            form.children('[' + attr + '="' + key + '"]').val(value);
        });
    };
})(jQuery);

Using:

{ 
  "id" : 12,
  "name": "Jack",
  "description": "Description"
}

form1 (matching by name attribute):

    
    
    </form>
$('#form1').myPopulate(json, 'name');
</code></pre>

<p>form2 (matching by <code>alt</code> attribute):</p>

<pre><code><form id="form2">
    <input type="text" name="nick" alt="name" />
    <input type="text" name="identifier" alt="id" />
    <textarea type="text" name="desc" alt="description" />
</form>
$('#form2').myPopulate(json, 'alt');
</code></pre>
    </p>
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