Disable readonly to text box onclicking the button

Question

I have used "readonly" attribute to the textbox which makes the textbox non editable and may i know how to disable the readonly attribute on clicking the button. can we do this by using any script ?

<input type="text" name="" value="" readonly="readonly"/><br/>
<input type="submit" name="" value="update" onclick="" />

Answer 1

You can do two things:

• Remove the readonly (case insensitive) attribute, using removeAttribute
• Set the readOnly (case sensitive) property to false

HTML:

<input id="myInput"  type="text"  readonly="readonly" /><br />
<input id="myButton" type="submit" value="update" />

JS (option 1): [Demo]

document.getElementById('myButton').onclick = function() {
    document.getElementById('myInput').removeAttribute('readonly');
};

JS (option 2): [Demo]

document.getElementById('myButton').onclick = function() {
    document.getElementById('myInput').readOnly = false;
};

Answer 2

Well, to be simple! You can use jQuery to remove this attribute (jQuery would be simple, you can do this using JS too). Here is the code for that:

$('input[type=submit]').click(function () {
  $('input[type=text]').removeAttr('readonly');
})

https://api.jquery.com/removeAttr/