How to reset some text field

[joymis]

Hello, everyone

Assume I have the following some code

<form>
...
<tr>
  <td>
    <button type="button" onclick="EditReset(0)"></button>
    <input type="text" class="edit_file_name" value="123">
  </td>
</tr>
<tr>
  <td>
    <button type="button" onclick="EditReset(1)"></button>
    <input type="text" class="edit_file_name" value="abc">
  </td>
</tr>
...
</form>

<script>
function EditReset(index){
    // what kind of method can do it
}
</script>

when I edit 1st row input change '123' to '123edit'

 

and edit 2nd row input change 'abc' to 'abcedit'

 

and then I click button ( EditReset(0) ), how can I do reset '123edit' to '123' but 'abcedit' will not be reset

 

because I don't want to use form.reset() reset all, have any method can do it?

Thank you

[dsonesuk]

use EditReset(this), 'this' will mean when clicked that it will be a reference of element clicked.

 

function EditReset(elem) 'elem' will be the element clicked.

 

You then go to parent element (tr) of the element clicked, and transverse down to find first input

elem.parentNode.getElementsByTagName('input')[0]

You then reset that inputs value to the default value the input has on loading using .defaultValue

elem.parentNode.getElementsByTagName('input')[0].value = elem.parentNode.getElementsByTagName('input')[0].defaultValue;

[joymis]

Hi, dsonesuk

 

Thank you for your help, It's work.

[dsonesuk]

You also have an alternative option instead of using default value in value attribute, use default value in placeholder attribute, then you clear the value completely as empty string "", instead of using .defaultValue.