wuhn - 博客园

2014年10月5日

摘要： ObjectsObject Usage and PropertiesEverything in JavaScript acts like an object, with the only two exceptions beingnullandundefined.false.toString(); /... 阅读全文

posted @ 2014-10-05 00:49 wuhn 阅读(442) 评论(0) 推荐(0)

The Dangers of JavaScript’s Automatic Semicolon Insertion

摘要： Although JavaScript is very powerful, the language’s fundamentals do not have a very steep learning curve. Prior to the explosion of web applications,... 阅读全文

posted @ 2014-10-05 00:27 wuhn 阅读(333) 评论(0) 推荐(0)

2014年10月4日

JavaScript constructors, prototypes, and the `new` keyword

摘要： Are you baffled(阻碍；使迷惑) by thenewoperator in JavaScript? Wonder what the difference between a function and a constructor is? Or what the heck a protot... 阅读全文

posted @ 2014-10-04 23:40 wuhn 阅读(191) 评论(0) 推荐(0)

JavaScript constructors, prototypes, and the `new` keyword

摘要： Are you baffled(阻碍；使迷惑) by thenewoperator in JavaScript? Wonder what the difference between a function and a constructor is? Or what the heck a protot... 阅读全文

posted @ 2014-10-04 23:40 wuhn 阅读(259) 评论(0) 推荐(0)

javascript中的function对象

摘要： function对象都是Function的实例：> Object.getOwnPropertyNames(Function)[ 'length', 'name', 'arguments', 'caller', 'prototype' ]所以function对象也应该有这些方法或者是属性：所以... 阅读全文

posted @ 2014-10-04 19:05 wuhn 阅读(923) 评论(0) 推荐(0)

javascript function对象

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posted @ 2014-10-04 18:37 wuhn 阅读(167) 评论(0) 推荐(0)

JavaScript- The Good Parts Chapter 5 Inheritance

摘要： Divides one thing entire to many objects;Like perspectives, which rightly gazed uponShow nothing but confusion. . .—William Shakespeare, The Tragedy o... 阅读全文

posted @ 2014-10-04 11:24 wuhn 阅读(271) 评论(0) 推荐(0)

python 调试

摘要：程序能一次写完并正常运行的概率很小，基本不超过1%。总会有各种各样的bug需要修正。有的bug很简单，看看错误信息就知道，有的bug很复杂，我们需要知道出错时，哪些变量的值是正确的，哪些变量的值是错误的，因此，需要一整套调试程序的手段来修复bug。第一种方法简单直接粗暴有效，就是用print把可能有... 阅读全文

posted @ 2014-10-04 09:51 wuhn 阅读(194) 评论(0) 推荐(0)

2014年10月3日

javascript函数库

摘要： //构造缓存函数var memoizer = function (memo, fundamental) { var shell = function (n) { var result = memo[n]; if (typeof result !== 'number'... 阅读全文

posted @ 2014-10-03 21:43 wuhn 阅读(114) 评论(0) 推荐(0)

Extending JavaScript Natives

摘要： Most built-in JavaScript types are constructors whose prototypes contain the methods and other properties that define their default behavior://(result... 阅读全文

posted @ 2014-10-03 21:15 wuhn 阅读(155) 评论(0) 推荐(0)

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