区别
Vue.prototype.Observer = function (data) {
const that = this;
for (var key in data) {
that.deps[key] = []; //初始化所有订阅者对象{msg: [订阅者], info: []}
}
let handler = {
get(target, property) {
return target[property];
},
set(target, key, value) {
let res = Reflect.set(target, key, value);
var watchers = that.deps[key];
watchers.map(item => {
item.update();
});
return res;
}
}
this.$data = new Proxy(data, handler);
}
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