index.js
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index.js
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	/*
	* Module requirements.
	*/

	var isArray = require('isarray');

	/**
	* Module exports.
	*/

	module.exports = hasBinary;

	/**
	* Checks for binary data.
	*
	* Right now only Buffer and ArrayBuffer are supported..
	*
	* @param {Object} anything
	* @api public
	*/

	function hasBinary(data) {

	function _hasBinary(obj) {
	if (!obj) return false;

	if ( (global.Buffer && Buffer.isBuffer(obj)) \|\|
	(global.ArrayBuffer && obj instanceof ArrayBuffer) \|\|
	(global.Blob && obj instanceof Blob) \|\|
	(global.File && obj instanceof File)
	) {
	return true;
	}

	if (isArray(obj)) {
	for (var i = 0; i < obj.length; i++) {
	if (_hasBinary(obj[i])) {
	return true;
	}
	}
	} else if (obj && 'object' == typeof obj) {
	if (obj.toJSON) {
	obj = obj.toJSON();
	}

	for (var key in obj) {
	if (obj.hasOwnProperty(key) && _hasBinary(obj[key])) {
	return true;
	}
	}
	}

	return false;
	}

	return _hasBinary(data);
	}