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关于koa2 参数传不进去 #32

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yuanlue opened this issue Mar 24, 2018 · 1 comment
Open

关于koa2 参数传不进去 #32

yuanlue opened this issue Mar 24, 2018 · 1 comment

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@yuanlue
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yuanlue commented Mar 24, 2018

试着用了koa的框架集成进来 做一个参数验证的中间件 试了几次 发现静态的数据传过去没有问题
但是通过路由传来的数据貌似不起作用
随后发现源代码中 validate的这个方法检查属性用的是hasownproperty 这个方法 不能检查对象原型链中的属性
于是将hasownproperty 换成了 key in obj 才可以使用

var has = key in obj
@paranoidjk
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什么情况下真实的参数会在原型链上而不再对象上？ 能否举个实际例子？

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@paranoidjk @yuanlue