Function objectsEqual

test/unit/static/js/proclaim.js:397–447

(obj1, obj2)

    // Utility for deep equality testing of objects
    function objectsEqual (obj1, obj2) {
        /* jshint eqeqeq: false */

        // Check for undefined or null
        if (isUndefinedOrNull(obj1) || isUndefinedOrNull(obj2)) {
            return false;
        }

        // Object prototypes must be the same
        if (obj1.prototype !== obj2.prototype) {
            return false;
        }

        // Handle argument objects
        if (isArgumentsObject(obj1)) {
            if (!isArgumentsObject(obj2)) {
                return false;
            }
            obj1 = Array.prototype.slice.call(obj1);
            obj2 = Array.prototype.slice.call(obj2);
        }

        // Check number of own properties
        var obj1Keys = getObjectKeys(obj1);
        var obj2Keys = getObjectKeys(obj2);
        if (obj1Keys.length !== obj2Keys.length) {
            return false;
        }

        obj1Keys.sort();
        obj2Keys.sort();

        // Cheap initial key test (see https://github.com/joyent/node/blob/master/lib/assert.js)
        var key, i, len = obj1Keys.length;
        for (i = 0; i < len; i += 1) {
            if (obj1Keys[i] != obj2Keys[i]) {
                return false;
            }
        }

        // Expensive deep test
        for (i = 0; i < len; i += 1) {
            key = obj1Keys[i];
            if (!isDeepEqual(obj1[key], obj2[key])) {
                return false;
            }
        }

        // If it got this far...
        return true;
    }

    // Utility for deep equality testing
    function isDeepEqual (actual, expected) {