_baseIsMatch.js
496ca12772aeissn4frontend

_baseIsMatch.js
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			var Stack = require('./_Stack'),
			baseIsEqual = require('./_baseIsEqual');

			/** Used to compose bitmasks for value comparisons. */
			var COMPARE_PARTIAL_FLAG = 1,
			COMPARE_UNORDERED_FLAG = 2;

			/**
			* The base implementation of `_.isMatch` without support for iteratee shorthands.
			*
			* @private
			* @param {Object} object The object to inspect.
			* @param {Object} source The object of property values to match.
			* @param {Array} matchData The property names, values, and compare flags to match.
			* @param {Function} [customizer] The function to customize comparisons.
			* @returns {boolean} Returns `true` if `object` is a match, else `false`.
			*/
			function baseIsMatch(object, source, matchData, customizer) {
			var index = matchData.length,
			length = index,
			noCustomizer = !customizer;

			if (object == null) {
			return !length;
			}
			object = Object(object);
			while (index--) {
			var data = matchData[index];
			if ((noCustomizer && data[2])
			? data[1] !== object[data[0]]
			: !(data[0] in object)
			) {
			return false;
			}
			}
			while (++index < length) {
			data = matchData[index];
			var key = data[0],
			objValue = object[key],
			srcValue = data[1];

			if (noCustomizer && data[2]) {
			if (objValue === undefined && !(key in object)) {
			return false;
			}
			} else {
			var stack = new Stack;
			if (customizer) {
			var result = customizer(objValue, srcValue, key, object, source, stack);
			}
			if (!(result === undefined
			? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG \| COMPARE_UNORDERED_FLAG, customizer, stack)
			: result
			)) {
			return false;
			}
			}
			}
			return true;
			}

			module.exports = baseIsMatch;