How to fetch value from within iFrame

You can get 61.00% by

const iframe = document.getElementById('iframe').contentWindow; const value = iframe.document.getElementsByClassName('datatable-cell')[0].innerText; 

If you want to change it, just change value.

Try this:

const iframe = document.getElementByID("iframe").contentWindow; let text = iframe.document.querySelector(".datatable-cell").innerHTML; 

Though, beware of scripting attacks, if you don't trust the iframe content.

With JQuery

$('.xtext')[0].click(function() { $('#iframe').contents().$(".datatable-cell").html(); } 

this my code :

<iframe src="http://www.golanpal.com/ahmad/test.txt" id="iframe" ></iframe> </br> <input type="button" value="Start" onclick="get()"> </br> <input id="xtext" type="text"> <script language="JavaScript" type="text/javascript"> function get() { !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????? } </script> 

in The text.txt file contains a value of (61.00%)

i want When press the Start button, I want to fetch the value (61.00%), and place it in the textinput (xtext)

*Note that the value in the example (61.00%) is variable