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- /* global Blob File */
- /*
- * Module requirements.
- */
- var isArray = require('isarray');
- var toString = Object.prototype.toString;
- var withNativeBlob = typeof Blob === 'function' ||
- typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]';
- var withNativeFile = typeof File === 'function' ||
- typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]';
- /**
- * Module exports.
- */
- module.exports = hasBinary;
- /**
- * Checks for binary data.
- *
- * Supports Buffer, ArrayBuffer, Blob and File.
- *
- * @param {Object} anything
- * @api public
- */
- function hasBinary (obj) {
- if (!obj || typeof obj !== 'object') {
- return false;
- }
- if (isArray(obj)) {
- for (var i = 0, l = obj.length; i < l; i++) {
- if (hasBinary(obj[i])) {
- return true;
- }
- }
- return false;
- }
- if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) ||
- (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
- (withNativeBlob && obj instanceof Blob) ||
- (withNativeFile && obj instanceof File)
- ) {
- return true;
- }
- // see: https://github.com/Automattic/has-binary/pull/4
- if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
- return hasBinary(obj.toJSON(), true);
- }
- for (var key in obj) {
- if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
- return true;
- }
- }
- return false;
- }
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