JavaScript之函数存储[摘]

时间:2023-01-04 14:32:48

引用文献:js忍者秘籍

var store = {//demo:函数存储----存储一组独立的函数
	nextId:1,
	cache:{},
	add:function(fn){
		if(!fn.id){
			fn.id = store.nextId++;
			return !!(store.cache[fn.id] = fn);
		}
	}
}
function say(content){
	console.log(content);
}
assert(store.add(say),"store function : say");
assert(store.add(say),"store function : say");
consoloe.log("say.id:",say.id);
store.cache.valueOf("say")[1]("Hello world");

 

output:

say.id: 1

Hello world