60 lines
1.2 KiB
JavaScript
60 lines
1.2 KiB
JavaScript
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/*
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* Module requirements.
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*/
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var isArray = require('isarray');
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/**
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* Module exports.
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*/
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module.exports = hasBinary;
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/**
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* Checks for binary data.
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*
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* Right now only Buffer and ArrayBuffer are supported..
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*
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* @param {Object} anything
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* @api public
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*/
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function hasBinary(data) {
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function _hasBinary(obj) {
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if (!obj) return false;
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if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
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(global.ArrayBuffer && obj instanceof ArrayBuffer) ||
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(global.Blob && obj instanceof Blob) ||
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(global.File && obj instanceof File)
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) {
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return true;
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}
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if (isArray(obj)) {
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for (var i = 0; i < obj.length; i++) {
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if (_hasBinary(obj[i])) {
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return true;
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}
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}
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} else if (obj && 'object' == typeof obj) {
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// see: https://github.com/Automattic/has-binary/pull/4
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if (obj.toJSON && 'function' == typeof obj.toJSON) {
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obj = obj.toJSON();
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}
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for (var key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
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return true;
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}
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}
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}
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return false;
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}
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return _hasBinary(data);
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}
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