The type attribute is not required. JavaScript is the default scripting language in HTML. (from W3school).
2. Script function can put any where such as <body> or <head>.
Keeping all code in one place, is always a good habit.
It is a good idea to place scripts at the bottom of the <body> element.
This can improve page load, because HTML display is not blocked by scripts loading.
(from W3school).
3. external file by using .js
<script src="myScript.js"></script>
The advantages: (from W3school)
- It separates HTML and code
- It makes HTML and JavaScript easier to read and maintain
- Cached JavaScript files can speed up page loads
4. Display functions:
- Writing into an alert box, using window.alert().
- Writing into the HTML output using document.write().
- Writing into an HTML element, using innerHTML.
- Writing into the browser console, using console.log().
5.
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