1.ts

interface IdeepFindImg {
  (path: string): Array<imageType>
}
let deepFindImg: IdeepFindImg
deepFindImg = (path: string) => {
  const content = fs.readdirSync(path)
  let images: Array<imageType> = []
  content.forEach(folder => {
    const filePath = resolve(path, folder)
    const info = fs.statSync(filePath)
    if (info.isDirectory()) {
      images = [...images, ...deepFindImg(filePath)]
    } else {
      const fileNameReg = /\.(jpe?g|png|svga)$/
      const shouldFormat = fileNameReg.test(filePath)
      if (shouldFormat) {
        const imgData = fs.readFileSync(filePath)
        images.push({
          path: filePath,
          file: imgData
        })
      }
    }
  })
  return images
}