如何监控js某个变量的改变
1个回答
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var Notify = function(callback){
var hash = {};
var worker = {
get:function(key){
return hash[key]
},
set:function(key,val){
var old = hash[key];
hash[key]= val;
callback(key, old, val);
}
}
return worker;
}
function call(k, l, n){
alert(n);
}
var no = new Notify(call);
alert(no.get('aaa'));
no.set('aaa',{a:1,b:2});
alert(no.get('aaa'));
var hash = {};
var worker = {
get:function(key){
return hash[key]
},
set:function(key,val){
var old = hash[key];
hash[key]= val;
callback(key, old, val);
}
}
return worker;
}
function call(k, l, n){
alert(n);
}
var no = new Notify(call);
alert(no.get('aaa'));
no.set('aaa',{a:1,b:2});
alert(no.get('aaa'));
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