Gerhard Scheikl
45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
export function formatBytes(n: number): string {
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const num = Number(n) || 0;
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if (num < 1024) return `${num} B`;
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const units = ['KiB', 'MiB', 'GiB', 'TiB', 'PiB'];
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let v = num / 1024;
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let i = 0;
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while (v >= 1024 && i < units.length - 1) {
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v /= 1024;
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i++;
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}
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return `${v.toFixed(2)} ${units[i]}`;
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}
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function pad(n: number): string {
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return n < 10 ? `0${n}` : `${n}`;
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}
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// Deterministic, timezone-independent date+time formatter.
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// Uses UTC getters so the server (UTC) and client (local TZ) render
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// byte-identical text, avoiding React hydration mismatches (error #425).
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// Output format: "YYYY-MM-DD HH:MM UTC".
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export function formatDateTime(s: string | null | undefined): string {
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if (!s) return '—';
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const d = new Date(s);
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if (Number.isNaN(d.getTime())) return '—';
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const date = `${d.getUTCFullYear()}-${pad(d.getUTCMonth() + 1)}-${pad(
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d.getUTCDate(),
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)}`;
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const time = `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}`;
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return `${date} ${time} UTC`;
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}
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// Date-only deterministic UTC formatter. Output format: "YYYY-MM-DD UTC".
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export function formatDateOnly(s: string | null | undefined): string {
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if (!s) return '—';
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const d = new Date(s);
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if (Number.isNaN(d.getTime())) return '—';
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return `${d.getUTCFullYear()}-${pad(d.getUTCMonth() + 1)}-${pad(
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d.getUTCDate(),
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)} UTC`;
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}
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// Backwards-compatible alias: existing call sites render date+time.
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export const formatDate = formatDateTime;
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