JSFiddle - React, Tailwind, and code Playground

by Taleeb Anwar

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<select id="slt-np" class="form-control">
    <option selected="" value="0">Selects one</option>
    <option value="1">one</option>
    <option value="2">two</option>
    <option value="3">three</option>
    <option value="4">four</option>
</select>
<input type='text' id='textbox' />

JavaScript

$("#textbox").keypress(function (e) {
    if (e.which == 13) {
        $("#slt-np").val($('#textbox').val());
    }
});