doc: add example about emitter.emit in events documentation #28374
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Welcome @felipedc09 and thanks for the pull request. If the purpose is to provide a straightforward and understandable example using emitter.event(), can we simplify this? I'm not sure we need three different events and a class too. Might it not be better to keep it simple along these lines?
const { EventEmitter } = require('events');
const emitter = new EventEmitter();
emitter.on('event', (arg1, arg) => { console.log('args', arg1, arg2); });
emitter.emit('event', 'arg 1', 'arg 2');
// Prints: args arg 1 arg 2
Trott
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not blocking, it's a comment, it can always happen after this lands
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Sure @Trott i like your comments, I will change the class but the emitter.emit is using to run synchronously the listeners associated to event, so I want explain the execution of these listeners respect their creation. thanks. |
doc/api/events.md
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| args.forEach((arg) => { | ||
| parameters += `${arg}, `; | ||
| } | ||
| ); |
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Please move this closing bracket to the line above. It's otherwise a bit confusing.
It could also be simplified by using join:
const parameters = args.join(', ');
doc/api/events.md
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| // [ | ||
| // [Function: firstListener], | ||
| // [Function: secondListener], | ||
| // [Function: thirdListener] |
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Super tiny nit: the indentation seems off. To keep it aligned with the starting bracket, it needs another whitespace.
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Landed in 698d479. Thanks for the contribution! 🎉 (If you're interested in other possible contributions to Node.js but don't have a good idea of where to start looking, some ideas are posted at https://www.nodetodo.org/next-steps/.) |
PR-URL: nodejs#28374 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
PR-URL: #28374 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes