d2-ui
Version:
28 lines (25 loc) • 757 B
Flow
/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule PhotosMimeType
*/
const PhotosMimeType = {
isImage(mimeString) {
return getParts(mimeString)[0] === 'image';
},
isJpeg(mimeString) {
const parts = getParts(mimeString);
return PhotosMimeType.isImage(mimeString) && (
// see http://fburl.com/10972194
parts[1] === 'jpeg' || parts[1] === 'pjpeg');
}
};
function getParts(mimeString) {
return mimeString.split('/');
}
module.exports = PhotosMimeType;