Created
April 29, 2014 15:09
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I wanted to make a promise-wrapped setTimeout that had a way to abort. I am not 100% happy with just giving the promise an abort() method.
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| promiseTimeout = (delay) -> | |
| extraMethods = {} | |
| promise = new Promise (resolve, reject) -> | |
| handle = setTimeout(resolve, delay) | |
| extraMethods.abort = (reason = new Error('timeout aborted')) -> | |
| if handle | |
| clearTimeout(handle) | |
| reject(reason) | |
| handle = false | |
| promise.abort = extraMethods.abort | |
| promise |
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Also, that extraMethods variable seems hackish - is there a better way to do that in CoffeeScript?