How to fill form with JSON?

var json={ 
  "id" : 12,
  "name": "Jack",
  "description": "Description"
};
for(key in json)
{
  if(json.hasOwnProperty(key))
    $('input[name='+key+']').val(json[key]);
}

srry i thought it was the id property that was set.

here: http://jsfiddle.net/anilkamath87/XspdN/

Came here searching for a solution that didn't involve jQuery or a brunch of DOM scaning, but didn't find one... so here is my vanilla js solution brought to you other guys that probably ditched jQuery long ago.

const data = { 
  "id" : 12,
  "name": "Jack",
  "description": "Description",
  "nonExisting": "works too"
}

const { elements } = document.querySelector('form')

for (const [ key, value ] of Object.entries(data) ) {
  const field = elements.namedItem(key)
  field && (field.value = value)
}

<form>
  <input type="text" name="id"/>
  <input type="text" name="name"/>
  <input type="text" name="description"/>
</form>