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57 lines
1.6 KiB
57 lines
1.6 KiB
// General helper functions |
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export const cancelablePromise = promise => { |
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let isCanceled = false |
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const wrappedPromise = new Promise((resolve, reject) => { |
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promise.then( |
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value => (isCanceled ? reject({ isCanceled, value }) : resolve(value)), |
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error => reject({ isCanceled, error }) |
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) |
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}) |
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return { |
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promise: wrappedPromise, |
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cancel: () => (isCanceled = true), |
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} |
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} |
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export const noop = () => {} |
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export const delay = (n = 550) => new Promise(resolve => setTimeout(resolve, n)) |
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export const isObject = obj => { return Object.prototype.toString.call(obj) === '[object Object]' } |
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export const convertToDuration = (milliseconds) => { |
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const stringifyTime = (time) => String(time).padStart(2, '0') |
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const seconds = Math.floor(milliseconds / 1000) |
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const minutes = Math.floor(seconds / 60) |
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const hours = Math.floor(minutes / 60) |
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return `${stringifyTime(hours)}:${stringifyTime( |
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minutes % 60 |
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)}:${stringifyTime(seconds % 60)}` |
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} |
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export const convertToTimeWorked = (milliseconds) => { |
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const seconds = Math.floor(milliseconds / 1000) |
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const minutes = Math.floor(seconds / 60) |
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const hours = Math.floor(minutes / 60) |
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if (hours > 0) { |
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return `${hours}h, ${minutes % 60}m` |
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} else { |
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return `${minutes % 60}m` |
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} |
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} |
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// Returns a random int between min and max (inclusive) |
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export function randomInt(min, max) { |
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min = Math.ceil(min); |
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max = Math.floor(max); |
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return Math.floor(Math.random() * (max - min + 1)) + min; |
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} |
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// Returns a random item from the given array |
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export function selectRandom(arrayToChooseFrom) { |
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return arrayToChooseFrom[randomInt(0, arrayToChooseFrom.length - 1)] |
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}
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