42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
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/**
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* Generates a URL-safe slug from text
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* @param text - Text to convert to slug
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* @returns URL-safe slug (lowercase, hyphenated)
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*/
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export function slugify(text: string): string {
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return text
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.normalize('NFD') // Normalize unicode
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.replace(/[\u0300-\u036f]/g, '') // Remove diacritics
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.toLowerCase()
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.trim()
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.replace(/[^a-z0-9\s-]/g, '') // Remove non-alphanumeric except spaces and hyphens
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.replace(/\s+/g, '-') // Replace spaces with hyphens
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.replace(/-+/g, '-') // Collapse multiple hyphens
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.replace(/^-+|-+$/g, '') // Remove leading/trailing hyphens
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}
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/**
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* Generates a unique slug by appending a suffix if needed
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* @param text - Text to convert to slug
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* @param existingSlugs - Array of existing slugs to avoid collisions
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* @returns Unique URL-safe slug
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*/
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export function uniqueSlugify(text: string, existingSlugs: string[]): string {
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const baseSlug = slugify(text)
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if (!existingSlugs.includes(baseSlug)) {
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return baseSlug
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}
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// Append incrementing numbers until unique
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let counter = 1
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let slug = `${baseSlug}-${counter}`
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while (existingSlugs.includes(slug)) {
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counter++
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slug = `${baseSlug}-${counter}`
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}
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return slug
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}
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