how to get selected option text in javascript code example

Example 1: get selected text js

// Get highlighted text this way:

window.getSelection().toString()

Example 2: get selected text of html dropdown in javascript

var e = document.getElementById("selectElementID");
var value=e.options[e.selectedIndex].value;// get selected option value
var text=e.options[e.selectedIndex].text;

Example 3: 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;
    }
}