How to save a hash in the input form?

Question

Say I have a hash and I want to enter it as val()

 $("#form_attribute").val( hash ) 

It is saved as the string "[Object, object]"

How to save it as a hash, and then allow the form to send this hash to my server?

Answer 1

If you want to convert the object / value to a JSON string, you can use JSON.stringify to do something like this:

 $("#form_attribute").val(JSON.stringify(hash)) 

This is a built-in method for the latest browsers, which converts the object to the JSON notation representing it. If any browser does not support it, your page should have several polyfills to support

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Literature:

• JSON.stringify - https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/JSON/stringify
• window.JSON browser compatibility - http://caniuse.com/json
• JSON3 polyfill - http://bestiejs.github.com/json3/
• JSON2 polyfill - https://github.com/douglascrockford/JSON-js
• JSON2 vs JSON3 - JSON polyfill: JSON 2 or JSON 3?

Answer 2

You can save it as a JSON string:

 $('#form_attribute').val(JSON.stringify(hash)); 

Or you can save the original object in the data attribute:

 $('#form_attribute').data('hash', hash);