javascript - html readonly attribute not removable -


I want to delete the read only feature from the following input fields: 

  Lt; Input id = "cno" name = "cno" type = "number" class = "form-control" read-only / & gt; & Lt; Button type = "button" id = "no-edit" class = "btn btn-warning" & gt; Edit & lt; / Button & gt;

I tried to use jQuery (1.11) to remove the attribute on the click of a button. Click 

  $ ("# no-edit") (function () {$ ("# cno"). RemoveProp ('readonly');});

And I also tried to use it: 

  $ ("# edit"). Click (function () {$ ("# cno") .removeAttr ('readonly');});

Please help! I do not understand why this is unsuccessful.

Try this: 

  $ ("# edit") . Click (function () {$ ("# cno") .prop ('readable', incorrect);});


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