1、

var obj = {
    name: 'bob',
    school: 'No.1 middle school',
    address: 'xueyuan road'
};

//让值变大写
var upper = _.mapObject(obj, function (value, key) {
    return value.toUpperCase();
});

alert(JSON.stringify(upper));

2、

var obj = {
    name: 'bob',
    school: 'No.1 middle school',
    address: 'xueyuan road'
};
// 判断key和value是否全部是小写：

var r1 = _.every(obj, function (value, key) {
    return key===key.toLowerCase()&&value===value.toLowerCase();
});
var r2 = _.some(obj, function (value, key) {
    return key===key.toLowerCase()&&value===value.toLowerCase();
});

alert('every key-value are lowercase: ' + r1 + '\nsome key-value are lowercase: ' + r2);