50 lines
1010 B
TypeScript
50 lines
1010 B
TypeScript
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/**
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* Validation utility functions
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*/
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/**
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* Check if value is empty
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*/
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export function isEmpty(value: unknown): boolean {
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if (value === null || value === undefined) return true;
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if (typeof value === 'string') return value.trim().length === 0;
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if (Array.isArray(value)) return value.length === 0;
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if (typeof value === 'object') return Object.keys(value).length === 0;
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return false;
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}
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/**
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* Check if value is not empty
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*/
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export function isNotEmpty(value: unknown): boolean {
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return !isEmpty(value);
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}
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/**
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* Check if email is valid
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*/
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export function isValidEmail(email: string): boolean {
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const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
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return emailRegex.test(email);
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}
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/**
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* Check if URL is valid
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*/
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export function isValidUrl(url: string): boolean {
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try {
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new URL(url);
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return true;
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} catch {
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return false;
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}
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}
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/**
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* Check if string is numeric
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*/
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export function isNumeric(str: string): boolean {
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return !isNaN(Number(str)) && !isNaN(parseFloat(str));
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}
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