1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | /* 根据后缀判断文件类型 */getFileType(fileName) {let suffix = ''; // 后缀获取let result = ''; // 获取类型结果if (fileName) {const flieArr = fileName.split('.'); // 根据.分割数组suffix = flieArr[flieArr.length - 1]; // 取最后一个}if (!suffix) return false; // fileName无后缀返回falsesuffix = suffix.toLocaleLowerCase(); // 将后缀所有字母改为小写方便操作// 匹配图片const imgList = ['png', 'jpg', 'jpeg', 'bmp', 'gif']; // 图片格式result = imgList.find(item => item === suffix);if (result) return 'image';// 匹配txtconst txtList = ['txt'];result = txtList.find(item => item === suffix);if (result) return 'txt';// 匹配excelconst excelList = ['xls', 'xlsx'];result = excelList.find(item => item === suffix);if (result) return 'excel';// 匹配wordconst wordList = ['doc', 'docx'];result = wordList.find(item => item === suffix);if (result) return 'word';// 匹配pdfconst pdfList = ['pdf'];result = pdfList.find(item => item === suffix);if (result) return 'pdf';// 匹配pptconst pptList = ['ppt', 'pptx'];result = pptList.find(item => item === suffix);if (result) return 'ppt';// 匹配zipconst zipList = ['rar', 'zip', '7z'];result = zipList.find(item => item === suffix);if (result) return 'zip';// 匹配视频const videoList = ['mp4', 'm2v', 'mkv', 'rmvb', 'wmv', 'avi', 'flv', 'mov', 'm4v'];result = videoList.find(item => item === suffix);if (result) return 'video';// 匹配音频const radioList = ['mp3', 'wav', 'wmv'];result = radioList.find(item => item === suffix);if (result) return 'radio';// 其他文件类型return 'other';} |
JS 根据后缀判断文件类型
标题：JS 根据后缀判断文件类型
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