Function getExtension

web/src/utils/file_icon.js:124–133

(name)

}

const getExtension = (name) => {
  const cleanName = String(name || '')
    .trim()
    .toLowerCase()
    .split(/[?#]/)[0]
  const fileName = cleanName.split('/').pop() || ''
  const dotIndex = fileName.lastIndexOf('.')
  if (dotIndex <= 0) return ''
  return fileName.slice(dotIndex + 1)
}

/**
 * 解析文件 / 文件夹对应的彩色图标 URL。