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get a little more accurate with month length (#3981)

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* get a little more accurate with month length

* create some wiggle room, create some specific tests

* update more tests
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Hailey 2024-05-13 08:39:34 -07:00 • committed by GitHub
parent 73d094c67e
commit 5cd4ac3a34
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2 changed files with 57 additions and 6 deletions
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21
src/lib/strings/time.ts
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@ -2,8 +2,8 @@ const NOW = 5
const MINUTE = 60
const HOUR = MINUTE * 60
const DAY = HOUR * 24
const MONTH = DAY * 28
const YEAR = DAY * 365
const MONTH_30 = DAY * 30
const MONTH = DAY * 30.41675 // This results in 365.001 days in a year, which is close enough for nearly all cases
export function ago(date: number | string | Date): string {
let ts: number
if (typeof date === 'string') {
@ -22,12 +22,21 @@ export function ago(date: number | string | Date): string {
return `${Math.floor(diffSeconds / MINUTE)}m`
} else if (diffSeconds < DAY) {
return `${Math.floor(diffSeconds / HOUR)}h`
} else if (diffSeconds < MONTH) {
} else if (diffSeconds < MONTH_30) {
return `${Math.round(diffSeconds / DAY)}d`
} else if (diffSeconds < YEAR) {
return `${Math.floor(diffSeconds / MONTH)}mo`
} else {
return new Date(ts).toLocaleDateString()
let months = diffSeconds / MONTH
if (months % 1 >= 0.9) {
months = Math.ceil(months)
} else {
months = Math.floor(months)
}
if (months < 12) {
return `${months}mo`
} else {
return new Date(ts).toLocaleDateString()
}
}
}