[Solved] retrieve contents of div and make image src


You can simply do it in jQuery by getting the text of the div and then setting the source of image like this:

var source = $("#flag-name").text();
console.log("before - " + $("#image").attr("src"));
$("#image").attr("src",source);
console.log("after - " + $("#image").attr("src"));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="flag-name" style="hidden">en-flag.jpg</div>

<img id="image" src="https://stackoverflow.com/questions/48871589/DIV CONTENTS HERE">

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solved retrieve contents of div and make image src