How to obtain the OptionValue and Text values of the Select drop-down box using JavaScript

It is relatively easy for Js to obtain the Value of each Option in the select drop-down list box, but it is a little troublesome to obtain the Text Value. For a beginner of JavaScript, it may not be easy at the moment, take the Select drop-down box menu in a form as an example to illustrate how to use JavaScript to obtain its Value and Text Value:

The example form contains the items and values of the select drop-down list box:

Next is the JavaScript part. Obtain the values and Text values of the Select statement: