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JavaScript delayed promise
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// Sometimes it is helpful/necessary to create a promise, that delays the execution. | |
// This very general/generic snippet returns a promise, that is resolved after a given timeout. | |
// The `min` and `max` arguments are used to calcuate a random delay in the range between `min` and `max` | |
let delay = (min, max) => { | |
return new Promise(resolve => { | |
setTimeout(resolve, Math.random() * (max - min) + min) | |
}) | |
} | |
// The next 3 lines of code are an example of how to use `delay()` in general: | |
delay(200, 1000).then(() => { | |
// your delayed code here | |
}) | |
// We combine `fetch-mock` with `delay()` as follows: | |
fetchMock.mock('begin:/my/dummy/url', (url, options) => { | |
return delay(200, 1000).then(() => { | |
// my code creating the response object where I look at the options for post parameters | |
return responseObject | |
}) | |
}) |
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