com.sweaxizone.w3c.extension

Various global utilities that are not included in the ECMAScript and WHATWG/W3C APIs. Not focusing on web DOM APIs for now, as I plan to use this for other purposes.

Getting started

Clutter the global object by using the following import statement:

``ts
import "com.sweaxizone.w3c.extension";
`

Short-augmented events

The following class defines play and stop events.

`ts
// media player
class MediaPlayer extends SAEventTarget {
// declare events
declare [EventRecord]: {
play: MediaPlayerEvent,
stop: MediaPlayerEvent,
};
}
`

Extending MediaPlayer with more events:

`ts
// media player
class MoreSpecializedPlayer extends MediaPlayer {
// declare events
declare [EventRecord]: MediaPlayer[typeof EventRecord] & {
// more events...
};
}
`

> Note that event types must implement the Event interface.

Other additions

- assert
- AssertionError
- trace(...) (equivalent to console.log())
- etrace(...) (equivalent to console.error())
- Math.clamp(value, from, to)
- BigInt.min(...)
- BigInt.max(...)
- SAByteArray (like Adobe Flash's ByteArray)
- isXMLName(argument) (like E4X's isXMLName())
- Namespace (like E4X's Namespace)
- QName (like E4X's QName)
- Iterator.prototype.length()
- Chars
- String.prototype.chars()`

License

Apache 2.0