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When do items in HTML5 local storage expire?

...may run into space considerations. It's good to program defensively. Generally however things remain "forever" based on some practical definition of that word. edit — obviously, your own application can actively remove stuff if it decides it's too old. That is, you can explicitly include some so...
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Is Meyers' implementation of the Singleton pattern thread safe?

...rently while the variable is being initialized, the concurrent execution shall wait for completion of the initialization. GCC and VS support for the feature (Dynamic Initialization and Destruction with Concurrency, also known as Magic Statics on MSDN) is as follows: Visual Studio: supported sinc...
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WatiN or Selenium? [closed]

.... It will be a major upgrade to the current CTP 2.0 versions and will basically give you the same functionality to automate FireFox and IE as version 1.3.0 offers for automating IE. So no concerns there. Hope this helps in making your choice Jeroen van Menen Lead dev WatiN ...
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Commonly accepted best practices around code organization in JavaScript [closed]

...ferent "namespaces" and sometimes individual classes in separate files. Usually I start with one file and as a class or namespace gets big enough to warrant it, I separate it out into its own file. Using a tool to combine all you files for production is an excellent idea as well. ...
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How to hide keyboard in swift on pressing return key?

...wDidLoad() // Do any additional setup after loading the view, typically from a nib. self.myTextField.delegate = self } func textFieldShouldReturn(_ textField: UITextField) -> Bool { self.view.endEditing(true) return false } } Code source: http://www...
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Binary Data in JSON String. Something better than Base64

...builtin functions, but the space efficiency is bad -- a 105% expansion (if all input bytes are equally likely) vs. 25% for base85 or 33% for base64. Final verdict: base64 wins, in my opinion, on the grounds that it's common, easy, and not bad enough to warrant replacement. See also: Base91 and Bas...
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PHP method chaining?

...g PHP 5 and I've heard of a new featured in the object-oriented approach, called 'method chaining'. What is it exactly? How do I implement it? ...
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Are there any disadvantages to always using nvarchar(MAX)?

In SQL Server 2005, are there any disadvantages to making all character fields nvarchar(MAX) rather than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level) ...
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How do I get the web page contents from a WebView?

...k I found the answer in this post on lexandera.com. The code below is basically a cut-and-paste from the site. It seems to do the trick. final Context myApp = this; /* An instance of this class will be registered as a JavaScript interface */ class MyJavaScriptInterface { @JavascriptInterface ...
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Eclipse: Enable autocomplete / content assist

... If you would like to use autocomplete all the time without having to worry about hitting Ctrl + Spacebar or your own keyboard shortcut, you can make the following adjustment in the Eclipse preferences to trigger autocomplete simply by typing several different cha...