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_this.requestTimeOutStatus = function (row, seat) {
  var currentStatus = SeatService.getStatusForSeatWith(row, seat);
  var fireBaseTimeDifference = reservationTime - moment().diff(moment(JSON.parse(currentStatus.date)), 'seconds');
  return fireBaseTimeDifference > 60 ? Math.round(fireBaseTimeDifference / 60) + 'm' : Math.round(fireBaseTimeDifference) + 's';
 };

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transform(value: any, args?: any): any {
 if (typeof value !== 'number') return '…'
 const inHours = value / 60 / 60 / 1000
 const inMinutes = value / 60 / 1000
 const inSeconds = value / 1000
 if (value < 1) return '…'
 if (inHours > 1) return `${Math.round(inHours)}h`
 if (inMinutes > 1) return `${Math.round(inMinutes)}m`
 return `${Math.round(inSeconds)}s`
}

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const   styleTime = ({completed, total}) => loadingStringIf(completed) || msAsHoursRounded(total) || msAsMinutesRounded(total) || msAsSecondsRounded(total) || loadingString();

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import {curry} from "ramda";
// Take a function and a value, return the function with the applied value if the value is evaluated as true
const falseOr = curry((fn, value) => value && fn(value));
// Return a string that indicates loading
const loadingString = () => '…';
// Return the loading string but only if the input evaluates to true
const loadingStringIf = falseOr(loadingString);

rolandpeelen

import {compose, curry} from "ramda";
// Take a function and a value, return the function with the applied value if the value is evaluated as true
const falseOr = curry((fn, value) => value && fn(value));
// Take a function and a value, return the value if the function returns true
const valueIf = curry((fn, value) => fn(value) && value);
// Take a duration in ms and convert it to either Hours, minutes or seconds;
const msToHours = (duration) => duration / 60 / 60 / 1000;
// Check if a value evaluates to true and if it is over one
const overOne = (value) => isNumber(value) && value > 1;
// Postfix function that takes a postfix and a value and adds it to the back of the value

rolandpeelen

const asHours = (duration) => {
 const stepOne = msToHours(duration);
 const stepTwo = valueIf(overOne(stepOne));
 const stepThree = falseOr(Math.round(stepTwo));
 const stepFour = falseOr(PostFixHours(stepThree));
 return stepFour;
}

// Or, if you're a mad man. Like this:
const asHours = (duration) => falseOr(postFixHours(falseOr(Math.round(valueIf(overOne(msToHours(duration)))))));

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// Take a duration in ms and convert it to either Hours, minutes or seconds;
const msToHours = (duration) => duration / 60 / 60 / 1000;

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import {compose, curry} from "ramda";
// Check if a value is number
const isNumber = (value) => typeof value === 'number';
// Take a function and a value, return the value if the function returns true
const valueIf = curry((fn, value) => fn(value) && value);
// Check if a value evaluates to true and if it is over one
const overOne = (value) => isNumber(value) && value > 1;

rolandpeelen

const asHours = (duration) => {
 const stepOne = msToHours(duration);
 const stepTwo = valueIf(overOne, stepOne);
 const stepThree = falseOr(Math.round(stepTwo));
 const stepFour = falseOr(PostFixHours(stepThree));
 return stepFour;
}

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const asHours = compose(falseOr(postFixHours), falseOr(Math.round), valueIf(overOne, stepOne?), msToHours);