答题

[JasonSubMara]

第一题

结合了下网上搜索的方法

function equals(x, y) {
        var f1 = x instanceof Object;
        var f2 = y instanceof Object;
        if (!f1 || !f2) {
            return x === y
        }
        if (Object.keys(x).length !== Object.keys(y).length) {
            return false
        }
        var newX = Object.keys(x);
        for (var p in newX) {
            p = newX[p];
            var a = x[p] instanceof Object;
            var b = y[p] instanceof Object;
            if (a && b) {
                equals(x[p], y[p])
            } else if (x[p] != y[p]) {
                return false;
            }
        }
        return true;

    }