775aa87540
* Update time.ts to handle very small or negative time differences Right now, posts can appear to be from the future with a negative time difference (i.e. -3s appears). This change defines 'NOW' as less than 5 seconds old, and returns 'now' in that case. It's not clear how localisation is handled - this may need translation. * Add test for 'now' in time/ago(...) Add tests for ago() for right now (i.e. 'now') and 10s ago to ensure the seconds case is still tested
54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
const NOW = 5
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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 = 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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ts = Number(new Date(date))
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} else if (date instanceof Date) {
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ts = Number(date)
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} else {
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ts = date
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}
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const diffSeconds = Math.floor((Date.now() - ts) / 1e3)
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if (diffSeconds < NOW) {
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return `now`
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} else if (diffSeconds < MINUTE) {
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return `${diffSeconds}s`
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} else if (diffSeconds < HOUR) {
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return `${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.floor(diffSeconds / DAY)}d`
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} else if (diffSeconds < YEAR) {
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return `${Math.floor(diffSeconds / MONTH)}mo`
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} else {
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return new Date(ts).toLocaleDateString()
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}
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}
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export function niceDate(date: number | string | Date) {
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const d = new Date(date)
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return `${d.toLocaleDateString('en-us', {
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year: 'numeric',
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month: 'short',
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day: 'numeric',
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})} at ${d.toLocaleTimeString(undefined, {
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hour: 'numeric',
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minute: '2-digit',
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})}`
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}
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export function getAge(birthDate: Date): number {
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var today = new Date()
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var age = today.getFullYear() - birthDate.getFullYear()
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var m = today.getMonth() - birthDate.getMonth()
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if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
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age--
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}
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return age
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}
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