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Formatters: speed up toDuration() (#44345)

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Leon Sorokin 2022-01-25 22:14:59 -06:00 committed by GitHub
parent 92ca38bedf
commit a20894c261
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1 changed files with 14 additions and 14 deletions
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28
packages/grafana-data/src/valueFormats/dateTimeFormatters.ts
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@ -20,6 +20,17 @@ export enum Interval {
Millisecond = 'millisecond',
}
const UNITS = [
Interval.Year,
Interval.Month,
Interval.Week,
Interval.Day,
Interval.Hour,
Interval.Minute,
Interval.Second,
Interval.Millisecond,
];
const INTERVALS_IN_SECONDS: IntervalsInSeconds = {
[Interval.Year]: 31536000,
[Interval.Month]: 2592000,
@ -206,17 +217,6 @@ export function toDuration(size: number, decimals: DecimalCount, timeScale: Inte
return v;
}
const units = [
{ long: Interval.Year },
{ long: Interval.Month },
{ long: Interval.Week },
{ long: Interval.Day },
{ long: Interval.Hour },
{ long: Interval.Minute },
{ long: Interval.Second },
{ long: Interval.Millisecond },
];
// convert $size to milliseconds
// intervals_in_seconds uses seconds (duh), convert them to milliseconds here to minimize floating point errors
size *= INTERVALS_IN_SECONDS[timeScale] * 1000;
@ -231,13 +231,13 @@ export function toDuration(size: number, decimals: DecimalCount, timeScale: Inte
decimalsCount = decimals as number;
}
for (let i = 0; i < units.length && decimalsCount >= 0; i++) {
const interval = INTERVALS_IN_SECONDS[units[i].long] * 1000;
for (let i = 0; i < UNITS.length && decimalsCount >= 0; i++) {
const interval = INTERVALS_IN_SECONDS[UNITS[i]] * 1000;
const value = size / interval;
if (value >= 1 || decrementDecimals) {
decrementDecimals = true;
const floor = Math.floor(value);
const unit = units[i].long + (floor !== 1 ? 's' : '');
const unit = UNITS[i] + (floor !== 1 ? 's' : '');
strings.push(floor + ' ' + unit);
size = size % interval;
decimalsCount--;