<script> tag is intended to include script and data blocks into a HTML documnet, not to store content which is (directly) rendered for the user. <script> element are src | Address (URL?) of the script |
type | empty, or module: a JavaScript module, or importmap: an import map. Any other value interprets the script as an (unprocessed) data block. |
nomodule | A boolean attribute that allows to prevent a script from being executed in user agents that support module scripts. |
async | A boolean attribute to execute the script as soon as it is available |
defer | A boolean attribute to defer execution |
crossorigin | A CORS setting attribute. |
integrity | |
referrerpolicy |
src attribute must be set to the URL where that resource is located. type attribute specifies the kind of the script. text/javascript. text/javascript: default application/ld+json: See JSON-LD text/ecmascript application/ecmascript application/javascript type="module" specifies the script to be a JavaScript module script. import declaration defer and async are boolean attributes. async causes the script to be fetched in parallel and to be parsed and executed as soon as possible (sometimes even before parsing is complete)
defer causes the script to be fetched in parallel and to be evaluated when is finished parsing.
src attribute is present.
defer, but not async, both attributes can be specified. In this case, it behaves as if only defer was specified. defer has no effect
<script> tag to define inline or external JavaScript code. <script> tag to specify the source code for WebGL. <noscript> tag. document.scripts document.currentScript returns the currently running <script> tag (which is not a JavaScript module). <script> element in the living standard.