is-webp:检查BufferUint8Array是否为WebP图像

是webp 检查Buffer / Uint8Array是否为映像 安装 $ npm install is-webp 用法 Node.js const readChunk = require ( 'read-chunk' ) ; const isWebp = require ( 'is-webp' ) ; const buffer = readChunk . sync ( 'unicorn.webp' , 0 , 12 ) ; isWebp ( buffer ) ; //=> true 浏览器 const xhr = new XMLHttpRequest ( ) ; xhr . open ( 'GET' , 'unicorn.webp' ) ; xhr . responseType = 'arraybuffer' ; xhr . onload = ( ) => { isWebp