quilling.dev
An ATproto social media client -- with an independent Appview.
get a little more accurate with month length (#3981)
* get a little more accurate with month length
* create some wiggle room, create some specific tests
* update more tests
hailey.at
+42
__tests__/lib/string.test.ts
+42
__tests__/lib/string.test.ts
···
143
})
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describe('ago', () => {
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const inputs = [
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1671461038,
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'04 Dec 1995 00:12:00 GMT',
···
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new Date().setMinutes(new Date().getMinutes() - 10),
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new Date().setHours(new Date().getHours() - 1),
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new Date().setDate(new Date().getDate() - 1),
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new Date().setMonth(new Date().getMonth() - 1),
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]
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const outputs = [
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new Date(1671461038).toLocaleDateString(),
···
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'10m',
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'1h',
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'1d',
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'1mo',
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]
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it('correctly calculates how much time passed, in a string', () => {
···
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})
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describe('ago', () => {
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+
const oneYearDate = new Date(
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+
new Date().setMonth(new Date().getMonth() - 11),
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+
).setDate(new Date().getDate() - 28)
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+
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const inputs = [
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1671461038,
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'04 Dec 1995 00:12:00 GMT',
···
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new Date().setMinutes(new Date().getMinutes() - 10),
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new Date().setHours(new Date().getHours() - 1),
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new Date().setDate(new Date().getDate() - 1),
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+
new Date().setDate(new Date().getDate() - 20),
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+
new Date().setDate(new Date().getDate() - 25),
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new Date().setDate(new Date().getDate() - 28),
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new Date().setDate(new Date().getDate() - 29),
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new Date().setDate(new Date().getDate() - 30),
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new Date().setMonth(new Date().getMonth() - 1),
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new Date(new Date().setMonth(new Date().getMonth() - 1)).setDate(
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new Date().getDate() - 20,
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+
),
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+
new Date(new Date().setMonth(new Date().getMonth() - 1)).setDate(
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+
new Date().getDate() - 25,
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+
),
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+
new Date(new Date().setMonth(new Date().getMonth() - 1)).setDate(
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+
new Date().getDate() - 28,
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+
),
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+
new Date(new Date().setMonth(new Date().getMonth() - 1)).setDate(
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+
new Date().getDate() - 29,
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+
),
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+
new Date().setMonth(new Date().getMonth() - 11),
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+
new Date(new Date().setMonth(new Date().getMonth() - 11)).setDate(
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+
new Date().getDate() - 20,
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+
),
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new Date(new Date().setMonth(new Date().getMonth() - 11)).setDate(
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+
new Date().getDate() - 25,
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+
),
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+
oneYearDate,
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]
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const outputs = [
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new Date(1671461038).toLocaleDateString(),
···
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'10m',
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'1h',
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'1d',
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+
'20d',
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+
'25d',
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+
'28d',
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+
'29d',
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'1mo',
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+
'1mo',
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+
'1mo',
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'1mo',
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'2mo',
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'2mo',
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+
'11mo',
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'11mo',
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+
'11mo',
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+
new Date(oneYearDate).toLocaleDateString(),
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]
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it('correctly calculates how much time passed, in a string', () => {
+15
-6
src/lib/strings/time.ts
+15
-6
src/lib/strings/time.ts
···
2
const MINUTE = 60
3
const HOUR = MINUTE * 60
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const DAY = HOUR * 24
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-
const MONTH = DAY * 28
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-
const YEAR = DAY * 365
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export function ago(date: number | string | Date): string {
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let ts: number
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if (typeof date === 'string') {
···
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return `${Math.floor(diffSeconds / MINUTE)}m`
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} else if (diffSeconds < DAY) {
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return `${Math.floor(diffSeconds / HOUR)}h`
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-
} else if (diffSeconds < MONTH) {
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return `${Math.round(diffSeconds / DAY)}d`
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-
} else if (diffSeconds < YEAR) {
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-
return `${Math.floor(diffSeconds / MONTH)}mo`
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} else {
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-
return new Date(ts).toLocaleDateString()
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}
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}
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···
2
const MINUTE = 60
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const HOUR = MINUTE * 60
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const DAY = HOUR * 24
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+
const MONTH_30 = DAY * 30
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+
const MONTH = DAY * 30.41675 // This results in 365.001 days in a year, which is close enough for nearly all cases
7
export function ago(date: number | string | Date): string {
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let ts: number
9
if (typeof date === 'string') {
···
22
return `${Math.floor(diffSeconds / MINUTE)}m`
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} else if (diffSeconds < DAY) {
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return `${Math.floor(diffSeconds / HOUR)}h`
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+
} else if (diffSeconds < MONTH_30) {
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return `${Math.round(diffSeconds / DAY)}d`
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} else {
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+
let months = diffSeconds / MONTH
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+
if (months % 1 >= 0.9) {
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+
months = Math.ceil(months)
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+
} else {
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+
months = Math.floor(months)
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+
}
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+
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+
if (months < 12) {
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+
return `${months}mo`
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+
} else {
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+
return new Date(ts).toLocaleDateString()
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+
}
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}
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}
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