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What is the ultimate postal code and zip regex?
... some countries they are made up by numbers, in others they can be combinations of numbers an letters, some can contain spaces, others dots, the number of characters can vary from two to at least six...
What you could do (theoretically) is create a seperate regex for every country in the world, not...
Avoiding if statement inside a for loop?
I have a class called Writer that has a function writeVector like so:
4 Answers
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What is the best way to deal with the NSDateFormatter locale “feechur”?
...ure" that bites you unexpectedly: If you do a simple "fixed" format operation such as:
4 Answers
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Why use symbols as hash keys in Ruby?
...changed anytime. This implies that Ruby needs to store each string you mention throughout your source code in it's separate entity, e.g. if you have a string "name" multiple times mentioned in your source code, Ruby needs to store these all in separate String objects, because they might change later...
What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
In the Mac and iOS platforms, memory leaks are often caused by unreleased pointers. Traditionally, it has always been of utmost importance to check your allocs, copies and retains to make sure each has a corresponding release message.
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转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...侈品。也是在那一年，我开始学习Android开发到后来学习iOS开发，走上了移动开发的道路，也就是在那时候，我开始做移动App项目，那时候，我把项目当做了产品。那时候对产品的理解是浅层的，跟多的是看得到的界面、用的到...
how to ignore namespaces with XPath
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You can use the local-name() XPath function. Instead of selecting a node like
/path/to/x:somenode
you can select all nodes and filter for the one with the correct local name:
/path/to/*[local-name() = 'somenode']
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What is the correct way to make a custom .NET Exception serializable?
More specifically, when the exception contains custom objects which may or may not themselves be serializable.
7 Answers
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Recommended way to save uploaded files in a servlet application
...ould not save the file in the server anyway as it is not portable, transactional and requires external parameters. However, given that I need a tmp solution for tomcat (7) and that I have (relative) control over the server machine I want to know :
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In a storyboard, how do I make a custom cell for use with multiple controllers?
...ng on. In the app there are Lists and Users and each contains a collection of the other (members of a list, lists owned by a user). So, accordingly, I have ListCell and UserCell classes. The goal is to have those be re-usable throughout the app (ie, in any of my tableview controllers).
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