38 lines
855 B
TypeScript
38 lines
855 B
TypeScript
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/**
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* 文件下载工具
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*/
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/**
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* 通过 URL 下载文件
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* @param url 文件下载地址
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* @param filename 保存的文件名
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*/
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export const downloadFileFromUrl = (url: string, filename?: string) => {
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try {
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const link = document.createElement('a')
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link.href = url
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link.target = '_blank'
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if (filename) {
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link.download = filename
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}
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// 添加到DOM，触发下载，然后移除
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document.body.appendChild(link)
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link.click()
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document.body.removeChild(link)
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} catch (error) {
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console.error('下载文件失败:', error)
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throw error
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}
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}
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/**
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* 获取文件扩展名
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* @param filename 文件名或URL
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*/
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export const getFileExtension = (filename: string): string => {
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const lastDotIndex = filename.lastIndexOf('.')
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return lastDotIndex !== -1 ? filename.slice(lastDotIndex) : ''
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}
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