Copy Text By clicking on Button

1. First of all create input type text add attribute readonly="readonly" to it

2.Get that input element by id or whatever ex. x =  document.getElementById("toCopy");

3. Add x.select(); function to select the text inside the input element

4. Call document function ex : document.execCommand("copy");

Here we go selected text at line number 3 will be copied

document.getElementById("toCopy");

<input readonly=​"readonly" style=​"font-size:​15px;​text-align:​left;​background:​none;​border:​none;​color:​white;​padding:​10px;​pointer:​cursor;​outline:​none;​width:​100%;​" id=​"toCopy" value=​"https:​/​/​dropshare.in/​3433gh">​

document.getElementById("toCopy").select();

undefined

document.getElementById("toCopy").sele

undefined

document.getElementById("toCopy").select();

undefined

document.execCommand("copy");

true