JSFiddle - React, Tailwind, and code Playground

by amiramix

HTML

<select id="Ultra" onchange="run()">  <!--Call run() function-->
     <option value="0">Select</option>
     <option value="8">text1</option>
     <option value="5">text2</option>
     <option value="4">text3</option>     
</select><br><br>

TextBox1<br>


<input type="text" id="srt" placeholder="get value on option select"><br>

TextBox2<br>
<input type="text" id="rtt"  placeholder="Write Something !" onkeyup="up()">

JavaScript

function run() {
    document.getElementById("srt").value = document.getElementById("Ultra").value;
}

function up() {

    //if (document.getElementById("srt").value != "") {
        var dop = document.getElementById("srt").value;
    //}
    pop(dop);

}

function pop(val) {
    alert(val);
}