48 lines
1.6 KiB
TypeScript
48 lines
1.6 KiB
TypeScript
/** 是否形如 ISO / 空格分隔的日期时间字符串 */
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export function looksLikeDateTime(value: unknown): boolean {
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const s = String(value ?? '').trim()
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return /^\d{4}-\d{2}-\d{2}(?:[T ]\d{2}:\d{2})?/.test(s)
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}
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/**
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* 展示用日期时间：若时分秒均为 0（或无时间部分）则只显示 YYYY-MM-DD；
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* 否则保留有意义的时间部分。
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*/
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export function formatDateTimeDisplay(value: string | number | null | undefined): string {
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const s = String(value ?? '').trim()
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if (!s) return ''
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if (/^\d{4}-\d{2}-\d{2}$/.test(s)) return s
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const m = s.match(
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/^(\d{4}-\d{2}-\d{2})[T ](\d{2}):(\d{2})(?::(\d{2})(?:\.\d+)?)?(?:Z|[+-]\d{2}:?\d{2})?$/
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)
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if (m) {
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const [, date, hh, mm, ss = '00'] = m
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if (hh === '00' && mm === '00' && ss.startsWith('00')) {
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return date
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}
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if (ss && ss !== '00') {
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return `${date} ${hh}:${mm}:${ss.slice(0, 2)}`
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}
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return `${date} ${hh}:${mm}`
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}
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return s
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}
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/** 纯日期字段：始终只展示 YYYY-MM-DD（兼容后端带 00:00:00 的历史数据） */
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export function formatDateOnly(value: string | number | null | undefined): string {
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const s = String(value ?? '').trim()
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if (!s) return ''
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return s.length >= 10 ? s.slice(0, 10) : s
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}
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/** 通用展示：空值 → —；日期时间按 formatDateTimeDisplay 处理 */
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export function formatDisplayOrDash(value: unknown): string {
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if (value === null || value === undefined || value === '') return '—'
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if (typeof value === 'boolean') return value ? '是' : '否'
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const s = String(value)
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return looksLikeDateTime(s) ? formatDateTimeDisplay(s) || '—' : s
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}
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