docs: add README to cli/js/web/
@@ -6,3 +6,45 @@ Please note, that some of implementations might not be completely aligned with
specification.
Some of the Web APIs are using ops under the hood, eg. `console`, `performance`.
+
+## Implemented Web APIs
+
+- [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob): for
+ representing opaque binary data
+- [Console](https://developer.mozilla.org/en-US/docs/Web/API/Console): for
+ logging purposes
+- [CustomEvent](https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent),
+ [EventTarget](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget)
+ and
+ [EventListener](https://developer.mozilla.org/en-US/docs/Web/API/EventListener):
+ to work with DOM events
+ - **Implementation notes:** There is no DOM hierarchy in Deno, so there is no
+ tree for Events to bubble/capture through.
+- [URL](https://developer.mozilla.org/en-US/docs/Web/API/URL) and
+ [URLSearchParams](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams):
+ to construct and parse URLSs
+- [fetch](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch),
+ [Request](https://developer.mozilla.org/en-US/docs/Web/API/Request),
+ [Response](https://developer.mozilla.org/en-US/docs/Web/API/Response),
+ [Body](https://developer.mozilla.org/en-US/docs/Web/API/Body) and
+ [Headers](https://developer.mozilla.org/en-US/docs/Web/API/Headers): modern
+ Promise-based HTTP Request API
+- [FormData](https://developer.mozilla.org/en-US/docs/Web/API/FormData): access
+ to a `multipart/form-data` serialization
+- [Location](https://developer.mozilla.org/en-US/docs/Web/API/Location): parsing
+ the current script's URL
+ - **Implementation notes:** the `globalThis.location` object cannot be
+ manipulated using `assign()`, `reload()` and `replace()` methods. They are
+ not implemented.
+- [Performance](https://developer.mozilla.org/en-US/docs/Web/API/Performance):
+ retrieving current time with a high precision
+- [setTimeout](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout),
+ [setInterval](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setInterval),
+ [clearTimeout](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/clearTimeout):
+ scheduling callbacks in future and
+ [clearInterval](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/clearInterval)
+- [Worker](https://developer.mozilla.org/en-US/docs/Web/API/Worker): executing
+ additional code in a separate thread
+ - **Implementation notes:** Blob URLs are not supported, object ownership
+ cannot be transferred, posted data is serialized to JSON instead of
+ [structured cloning](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm).
