我的代码如下, 是否有更简单的方法在JavaScript中编写Object.defineProperty?
Object.defineProperty(window, "world",
{
set: function(w)
{
return w();
}
});
谢谢!
答案 0 :(得分:2)
试试这个:
Object.defineProperties(window, {
propertyOne: {
get: function(){ },
set: function(i){ ... }
},
propertyTwo: {
get: function(){ },
set: function(i){ ... }
},
propertyThree: {
get: function(){ },
set: function(i){ ... }
}
});
相当于:
Object.defineProperty(window, "propertyOne", {
get: function(){ },
set: function(i){ ... }
});
Object.defineProperty(window, "propertyTwo", {
get: function(){ },
set: function(i){ ... }
});
Object.defineProperty(window, "propertyThree", {
get: function(){ },
set: function(i){ ... }
});
在将函数分配给对象文字时(例如设置JavaScript函数的原型时),也可以使用get / set关键字:
var Example = function(element){
this.element = element;
};
Example.prototype = {
get colour(){ return this.element.style.backgroundColor; },
set colour(i){ this.element.style.backgroundColor = i; }
}