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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
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<body>
<script>
//无论是变量名字还是，对象的属性都不能是 保留字；
//继承
Object.prototype.method =
function(method,fn){
return this[method] =
fn;
};
//继承方法1 复制继承
Function.prototype.method('new',
function(){
var that = Object.create(
this.prototype);
var other =
this.apply(that, arguments);
return (
typeof other === 'object' && other) ||
that;
});
//继承方法2： 原型继承
Object.prototype.method('inherits',
function(parent){
this.prototype =
new parent();
//return this;
});
function aa(){};
aa.prototype.fn =
function(){alert(1
)};
aa.prototype.fn1 =
function(){alert(2
)};
//var bb = function(){}
//bb.prototype = aa.new();
//var bb = function(){};
//bb.inherits( aa )
//aa.fn1() //错误
var bb = (
new aa)
bb.fn1() // alert(1);
//函数的属性和prototype是不一样的，但是用new了函数以后，返回的obj拥有了protype（继承）的方法和属性
//Model化开发
var mammal =
function(spec){
var that =
{};
that.get_name =
function(){
return spec.name;
};
that.says =
function(){
return spec.saying || ''
;
};
return that;
};
var myMammal = mammal( {name : 'herb'
} );
//差异化，复用mammal
var cat =
function(spec){
spec.saying = spec.saying || 'meow'
;
var that =
mammal(spec);
that.purr =
function(n){
var i, s = ''
;
for(
var i=0; i<n; i++
){
if(s){
s += '_'
;
};
s += 'r'
;
};
return s;
};
that.get_name =
function(){
return that.says() + ' ' +spec.name+ ' ' +
that.says();
};
return that;
};
var myCat = cat({name : 'xx'
});
//部件__ ->_->话说自定义事件和常见啊 !>_<!
var eventuality =
function(that){
var registry =
{};
that.fire =
function(event){
var array,
func,
handler,
i,
type =
typeof event === 'string' ?
event : event.type;
if( registry.hasOwnProperty(type) ){
array =
registry[type];
for(
var i=0; i<array.length; i++
){
handler =
array[i];
func =
handler.func;
func();
}
};
};
that.on =
function(type, method, parameters){
//registry[type] || ( registry[type] = {} );
var handler =
{
method : method,
parameters : parameters
};
if( registry.hasOwnProperty(type) ){
registry[type].push( handler );
}else{
registry[type] =
[handler];
};
return this;
};
return that;
}
</script>
</body>
</html>
转载于:https://www.cnblogs.com/diligenceday/p/3436680.html
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