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25 lines
752 B
TypeScript
25 lines
752 B
TypeScript
export function getFileExtension(filename: string): string {
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const base = filename.split(/[/\\]/).pop() ?? filename
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const dot = base.lastIndexOf('.')
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if (dot <= 0 || dot === base.length - 1) return '—'
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return base.slice(dot + 1).toLowerCase()
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}
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export function getUrlPathname(url: string): string {
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try {
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return decodeURIComponent(new URL(url).pathname.replace(/^\/+/, ''))
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} catch {
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return url
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}
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}
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export function getStorageKeyTail(key: string): string {
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const prefix = 'images/'
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return key.startsWith(prefix) ? key.slice(prefix.length) : key
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}
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export function formatImageDimensions(width: number | null, height: number | null): string | null {
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if (!width || !height) return null
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return `${width} × ${height} px`
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}
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