deepEqual: function deepEqual()

in bower_modules/sinonjs/sinon.js [583:641]

• 46 lines of code
• 21 McCabe index (conditional complexity)

        deepEqual: function deepEqual(a, b) {
            if (sinon.match && sinon.match.isMatcher(a)) {
                return a.test(b);
            }
            if (typeof a != "object" || typeof b != "object") {
                return a === b;
            }

            if (isElement(a) || isElement(b)) {
                return a === b;
            }

            if (a === b) {
                return true;
            }

            if ((a === null && b !== null) || (a !== null && b === null)) {
                return false;
            }

            var aString = Object.prototype.toString.call(a);
            if (aString != Object.prototype.toString.call(b)) {
                return false;
            }

            if (aString == "[object Array]") {
                if (a.length !== b.length) {
                    return false;
                }

                for (var i = 0, l = a.length; i < l; i += 1) {
                    if (!deepEqual(a[i], b[i])) {
                        return false;
                    }
                }

                return true;
            }

            if (aString == "[object Date]") {
                return a.valueOf() === b.valueOf();
            }

            var prop, aLength = 0, bLength = 0;

            for (prop in a) {
                aLength += 1;

                if (!deepEqual(a[prop], b[prop])) {
                    return false;
                }
            }

            for (prop in b) {
                bLength += 1;
            }

            return aLength == bLength;
        },