René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"RFC - EventTarget API Enhancements","articleBody":"I've started working on an API enhancement for EventTarget that allows passing a signal to the options dictionary of `addEventListener`. As a side node I've prototyped the same for Node.js EventEmitter at https://github.com/nodejs/node/pull/35877 (currently blocked on something V8 is working on).\r\n\r\nThis would let uses do the following:\r\n\r\n```js\r\n// Does not yet work, suggested:\r\nconst ac = new AbortController();\r\nlet { signal } = ac;\r\nconst et = new EventTarget();\r\net.addEventListener('foo', (e) =\u003e {\r\n  \r\n}, { signal } );\r\nac.abort(); // removes the listener from the event target, same as et.removeEventListener('foo', thatFunctionReference)\r\n```\r\n\r\nIn node land - this would be for example: unsubscribing from `\"message\"` and `abort` at the same time on multiple workers.\r\n\r\nI wanted this feature for Node but I also find it very useful for browsers. I'm pretty clueless at this (Bikeshed etc) and Anne and Domenic have been helping me a ton with the spec work.\r\n\r\nI personally think this positively impacts Node because:\r\n - Node was in my mind when I started working on this\r\n - I will happily do the technical part of implementing this in our EventTarget\r\n\r\nThat said: too many times in the past Node was an afterthought in open standards the project participates in and I want to gather feedback in case there are unforeseen negative consequences from our side.\r\n\r\nSo - is there anything this should do differently?\r\n\r\n--- \r\n\r\n**I would _personally strongly_ prefer it if comments were given in this issue first** to reduce the noise for WHATWG folks who have been helping me on this but really don't owe me anything.\r\n \r\nCurrently I have a spec draft ready at: https://github.com/whatwg/dom/pull/919\r\nInitial Chromium implementation (by chromium at https://github.com/whatwg/dom/issues/911#issuecomment-724885708 )\r\nImplementor interest by Firefox and Chromium.","author":{"url":"https://github.com/benjamingr","@type":"Person","name":"benjamingr"},"datePublished":"2020-11-10T19:03:41.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/36073/node/issues/36073"}