dejavu.jsJavaScript 面向对象框架
dejavu 在JavaScript原型继承的基础上提供了经典的继承形式,使得其他语言开发者可以轻松转向JavaScript。
dejavu 主要特性:
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类(具体的、抽象的、final类)
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接口
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混入(这样你可以使用某种形式的多重继承)
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私有成员和受保护成员
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静态成员
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常量
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函数上下文绑定
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方法签名检查
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扩展和借用vanilla类
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自定义instanceOf,支持接口
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两个版本:普通版本和AMD优化版本
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每个版本都有两种模式:严格模式(执行很多检查)和宽松模式(无检查)
示例代码:
var Person = Class.declare({
// although not mandatory, it's really useful to identify
// the class name, which simplifies debugging
$name: 'Person',
// this is a protected property, which is identified by
// the single underscore. two underscores denotes a
// private property, and no underscore stands for public
_name: null,
__pinCode: null,
// class constructor
initialize: function (name, pinCode) {
this._name = name;
this.__pinCode = pinCode;
// note that we're binding to the current instance in this case.
// also note that if this function is to be used only as a
// callback, you can use $bound(), which will be more efficient
setTimeout(this._logName.$bind(this), 1000);
},
// public method (follows the same visibility logic, in this case
// with no underscore)
getName: function () {
return this._name;
}
_logName: function () {
console.log(this._name);
}
});
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