jQuery onClick capture the id of the element

Question

i have many input fields like this

<input type="radio" name="name" id="name" onchange="enableTxt()" />  

when i click this radio button i wanna capture the id of the radio input. i am using the following code

function enableTxt() {     var id = $(this).attr("id");     alert(id); } 

Am getting this error

a.attributes is undefined 

Answer 1

HTML:

<input type="radio" name="name" id="name" onchange="enableTxt(this)" />  

JS:

function enableTxt(elem) {     var id = $(elem).attr("id");     alert(id); } 

Answer 2

The html

 <button class="destroy" id="123"> 

The jQuery

  $('button.destroy').on('click', function(e){     e.preventDefault();     console.log(this.id);