javascript select option based on text code example

Example 1: how to get text from select tag in javascript

<select id="box1" onChange="myNewFunction(this);">
  <option value="98">dog</option>
  <option value="7122">cat</option>
  <option value="142">bird</option>
</select>
<script>
  function myNewFunction(sel) {
  alert(sel.options[sel.selectedIndex].text);
}
</script>

Example 2: javascript select option based on text

var textToFind = 'Google';

var dd = document.getElementById('MyDropDown');
for (var i = 0; i < dd.options.length; i++) {
    if (dd.options[i].text === textToFind) {
        dd.selectedIndex = i;
        break;
    }
}