38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
// Generic utilities
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import { type ClassValue, clsx } from "clsx";
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import { twMerge } from "tailwind-merge";
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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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* Generates a UUID v4 string
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* Uses crypto.randomUUID() if available, otherwise falls back to a custom implementation
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*/
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export function generateUUID(): string {
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// Use the native crypto.randomUUID if available
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if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') {
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return crypto.randomUUID();
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}
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// Secure fallback using crypto.getRandomValues
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const bytes = new Uint8Array(16);
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crypto.getRandomValues(bytes);
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// Set version 4 (UUIDv4)
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bytes[6] = (bytes[6] & 0x0f) | 0x40;
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// Set variant 10xxxxxx
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bytes[8] = (bytes[8] & 0x3f) | 0x80;
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const hex = [...bytes].map(b => b.toString(16).padStart(2, '0'));
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return (
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hex.slice(0, 4).join('') + '-' +
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hex.slice(4, 6).join('') + '-' +
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hex.slice(6, 8).join('') + '-' +
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hex.slice(8, 10).join('') + '-' +
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hex.slice(10, 16).join('')
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);
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} |