html close tag is required in either case. HTML tag just as it appears. HTML Tags List. continues parsing the page. Common uses for JavaScript are image manipulation, form validation, and dynamic changes of … For module scripts, if the async attribute is present then the scripts and all their dependencies will be executed in the defer queue, therefore they will get fetched in parallel to parsing and evaluated as soon as they are available. Sometimes you need to dynamically add a script tag to HTML. It is useful for adding things like dynamic content or form validation. form, input, textarea, select, option, optgroup, button, label, fieldset and legend. This doesn’t handle execution order by itself, but we can insert the tags sequentially. Usually we keep script code in header of the document using tag. 599. Anything in a PHP script that is not contained within The HTML