Install

$ npm install file-type-wechat

Usage

import { fileType } from 'file-type-wechat'

Page({
  data: {},
  click() {
    wx.chooseImage({ //选择图片
      sizeType: ['compressed'], //图片不能经过压缩处理
      success(res) {
        let info = fileType(res.tempFilePaths[0])
        console.log('fileType info', info)
      }
    });
  },
  onLoad: function () {
  },
})

Source

file-type v12.3.0

Supported file types

• jpg
• png
• apng - Animated Portable Network Graphics
• gif
• webp
• flif
• cr2 - Canon Raw image file (v2)
• orf - Olympus Raw image file
• arw - Sony Alpha Raw image file
• dng - Adobe Digital Negative image file
• nef - Nikon Electronic Format image file
• rw2 - Panasonic RAW image file
• raf - Fujifilm RAW image file
• tif
• bmp
• jxr
• psd
• zip
• tar
• rar
• gz
• bz2
• 7z
• dmg
• mp4
• mid
• mkv
• webm
• mov
• avi
• mpg
• mp2
• mp3
• ogg
• ogv
• ogm
• oga
• spx
• ogx
• opus
• flac
• wav
• qcp
• amr
• pdf
• epub
• mobi - Mobipocket
• exe
• swf
• rtf
• woff
• woff2
• eot
• ttf
• otf
• ico
• flv
• ps
• xz
• sqlite
• nes
• crx
• xpi
• cab
• deb
• ar
• rpm
• Z
• lz
• msi
• mxf
• mts
• wasm
• blend
• bpg
• docx
• pptx
• xlsx
• jp2 - JPEG 2000
• jpm - JPEG 2000
• jpx - JPEG 2000
• mj2 - Motion JPEG 2000
• aif
• odt - OpenDocument for word processing
• ods - OpenDocument for spreadsheets
• odp - OpenDocument for presentations
• xml
• heic
• cur
• ktx
• ape - Monkey's Audio
• wv - WavPack
• asf - Advanced Systems Format
• wma - Windows Media Audio
• wmv - Windows Media Video
• dcm - DICOM Image File
• mpc - Musepack (SV7 & SV8)
• ics - iCalendar
• glb - GL Transmission Format
• pcap - Libpcap File Format
• dsf - Sony DSD Stream File (DSF)
• lnk - Microsoft Windows file shortcut
• alias - macOS Alias file
• voc - Creative Voice File
• ac3 - ATSC A/52 Audio File
• 3gp - Multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services
• 3g2 - Multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services
• m4v - MPEG-4 Visual bitstreams
• m4p - MPEG-4 files with audio streams encrypted by FairPlay Digital Rights Management as were sold through the iTunes Store
• m4a - Audio-only MPEG-4 files
• m4b - Audiobook and podcast MPEG-4 files, which also contain metadata including chapter markers, images, and hyperlinks
• f4v - ISO base media file format used by Adobe Flash Player
• f4p - ISO base media file format protected by Adobe Access DRM used by Adobe Flash Player
• f4a - Audio-only ISO base media file format used by Adobe Flash Player
• f4b - Audiobook and podcast ISO base media file format used by Adobe Flash Player
• mie - Dedicated meta information format which supports storage of binary as well as textual meta information.

SVG isn't included as it requires the whole file to be read, but you can get it here.

Pull requests are welcome for additional commonly used file types, except for doc, xls, ppt.