38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
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/** 从 URL 中提取文件名 */
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export const getFileNameFromUrl = (url: string): string => {
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try {
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const urlObj = new URL(url)
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const pathname = urlObj.pathname
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const fileName = pathname.split('/').pop() || 'unknown'
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return decodeURIComponent(fileName)
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} catch {
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// 如果 URL 解析失败，尝试从字符串中提取
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const parts = url.split('/')
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return parts[parts.length - 1] || 'unknown'
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}
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}
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/** 判断是否为图片 */
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export const isImage = (filename: string): boolean => {
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const ext = filename.split('.').pop()?.toLowerCase() || ''
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return ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp', 'svg'].includes(ext)
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}
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/** 格式化文件大小 */
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export const formatFileSize = (bytes: number): string => {
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if (bytes === 0) return '0 B'
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const k = 1024
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const sizes = ['B', 'KB', 'MB', 'GB']
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const i = Math.floor(Math.log(bytes) / Math.log(k))
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return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]
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}
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/** 获取文件图标 */
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export const getFileIcon = (filename: string): string => {
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const ext = filename.split('.').pop()?.toLowerCase() || ''
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if (isImage(ext)) {
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return 'ep:picture'
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}
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return 'ep:document'
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}
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