50 lines
1.1 KiB
TypeScript
50 lines
1.1 KiB
TypeScript
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import { type ClassValue, clsx } from "clsx";
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import { twMerge } from "tailwind-merge";
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/**
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* Utility for merging tailwind classes safely.
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*/
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export function cn(...inputs: ClassValue[]) {
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return twMerge(clsx(inputs));
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}
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/**
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* Formats a number as a currency string.
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*/
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export function formatCurrency(value: number, decimals: number = 2) {
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return new Intl.NumberFormat("en-US", {
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style: "currency",
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currency: "USD",
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minimumFractionDigits: decimals,
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maximumFractionDigits: decimals,
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}).format(value);
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}
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/**
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* Formats a percentage from midpoint.
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*/
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export function formatPercent(value: number) {
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return (value * 100).toFixed(1) + "%";
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}
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/**
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* Converts Fahrenheit to Celsius.
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*/
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export function fToC(f: number) {
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return ((f - 32) * 5) / 9;
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}
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/**
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* Formats a date/time string to HH:MM:SS.
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*/
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export function formatTime(date: Date | string) {
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const d = typeof date === "string" ? new Date(date) : date;
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if (isNaN(d.getTime())) return String(date);
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return d.toLocaleTimeString("zh-CN", {
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hour12: false,
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hour: "2-digit",
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minute: "2-digit",
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second: "2-digit",
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});
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}
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