从JSON api填充html表单元素的正确方法

Question

I have an API returning a JSON object containing user settings. Before using it, I was used to filling fields with php:

 <input type="checkbox" <?php echo $checked ?>>

Now I have a JSON object and no PHP output. How to manipulate it to do the same?

I thought about using jquery to fill in elements on document.ready:

$(document).ready(function() {
  $('input').attr('checked', jsonobj.checked);
}

But something tells me that it's a bit hackish, is that the right way to do it?