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Calculate "until"

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This commit is contained in:
Chi Vinh Le
2017-05-15 23:07:46 +07:00
parent 63fa3c4de7
commit a9207428fe
4 changed files with 47 additions and 3 deletions
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client/coral-framework/utils/index.js
+30
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@@ -61,3 +61,33 @@ export function separateDataAndRoot(
root,
};
}
/**
* Taken from: http://stackoverflow.com/questions/1197928/how-to-add-30-minutes-to-a-javascript-date-object.
* Adds time to a date. Modelled after MySQL DATE_ADD function.
* Example: dateAdd(new Date(), 'minute', 30) //returns 30 minutes from now.
*
* @param date Date to start with
* @param interval One of: year, quarter, month, week, day, hour, minute, second
* @param units Number of units of the given interval to add.
*/
export function dateAdd(date, interval, units) {
let ret = new Date(date); // don't change original date
const checkRollover = () => {
if (ret.getDate() !== date.getDate()) {
ret.setDate(0);
}
};
switch(interval.toLowerCase()) {
case 'year' : ret.setFullYear(ret.getFullYear() + units); checkRollover(); break;
case 'quarter': ret.setMonth(ret.getMonth() + 3 * units); checkRollover(); break;
case 'month' : ret.setMonth(ret.getMonth() + units); checkRollover(); break;
case 'week' : ret.setDate(ret.getDate() + 7 * units); break;
case 'day' : ret.setDate(ret.getDate() + units); break;
case 'hour' : ret.setTime(ret.getTime() + units * 3600000); break;
case 'minute' : ret.setTime(ret.getTime() + units * 60000); break;
case 'second' : ret.setTime(ret.getTime() + units * 1000); break;
default : ret = undefined; break;
}
return ret;
}