Created
February 27, 2018 02:52
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Bluebird.Promise cancellation
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import Promise from 'bluebird'; | |
Promise.config({ | |
cancellation: true, | |
}); | |
console.log('Experiment A!!!'); | |
const rootPromise1 = new Promise((resolve, reject, onCancel) => { | |
console.log('A: rootPromise1 started'); | |
setTimeout(() => { | |
resolve(); | |
}, 100); | |
onCancel(() => { | |
console.log('A: rootPromise1 cancelled'); | |
}); | |
return Promise.resolve() | |
.then(() => new Promise((resolve, reject, onCancel) => { | |
console.log('A: subPromise1 started'); | |
setTimeout(() => { | |
resolve(); | |
}, 100); | |
onCancel(() => { | |
console.log('A: subPromise1 cancelled'); | |
}); | |
})) | |
.then(() => new Promise((resolve, reject, onCancel) => { | |
console.log('A: subPromise2 started'); | |
setTimeout(() => { | |
resolve(); | |
}, 100); | |
onCancel(() => { | |
console.log('A: subPromise2 cancelled'); | |
}); | |
})); | |
}); | |
rootPromise1.cancel(); | |
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import Promise from 'bluebird'; | |
Promise.config({ | |
cancellation: true, | |
}); | |
console.log('Experiment B!!!'); | |
const rootPromise2 = Promise.resolve() | |
.then(() => new Promise((resolve, reject, onCancel) => { | |
console.log('B: subPromise1 started'); | |
setTimeout(() => { | |
resolve(); | |
}, 100); | |
onCancel(() => { | |
console.log('B: subPromise1 cancelled'); | |
}); | |
})) | |
.then(() => new Promise((resolve, reject, onCancel) => { | |
console.log('B: subPromise2 started'); | |
setTimeout(() => { | |
resolve(); | |
}, 100); | |
onCancel(() => { | |
console.log('B: subPromise2 cancelled'); | |
}); | |
})); | |
setTimeout(() => { | |
rootPromise2.cancel(); | |
}, 150); |
Author
ohtangza
commented
Feb 27, 2018
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