tip: To improve display speed, place scripts at the bottom of the body tag.
tip: You can write unlimited scripts in an HTML file, you can also position your scripts in the Head section (in this case you will place head tag above the body tag and place script there), in the last example we placed the script in the body section.
You can position scripts in external folders.
When you use the script in many pages of your website, external scripts are usaful.
we will explain how to use external script in the next example: