How to disable/enable input field on click with jQuery

Question

How to properly enable/disable input field on click with jQuery?

I was experimenting with:

$(\"#FullName\").removeAttr(\'disabled\');

Answer 1

$("#anOtherButton").click(function(){
  $("#FullName").attr('disabled', 'disabled'); 
 });

• .attr( attributeName, value) function

  Set one or more attributes for the set of matched elements