Where do you place script in your html document ?
JavaScript in body or head:
- Scripts can be placed inside the body or the head section of an HTML page or inside both head and body.
JavaScript in head:
- A JavaScript function is placed inside the head section of an HTML page and the function is invoked when a button is clicked.
JavaScript in body:
- A JavaScript function is placed inside the body section of an HTML page and the function is invoked when a button is clicked.
External JavaScript:
- JavaScript can also be used as external files. JavaScript files have file extension .js. To use an external script put the name of the script file in the src attribute of a script tag. External scripts cannot contain script tags.
Advantages of External JavaScript:
- Cached JavaScript files can speed up page loading.
- It makes JavaScript and HTML easier to read and maintain.
- It separates the HTML and JavaScript code.
- It focuses on code re usability that is one JavaScript Code can run in various HTML files.