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Efficient way to determine number of digits in an integer

...For added efficiency, if you know that your input numbers will be mostly small ones (I'm guessing less than 100,000), then reverse the tests: if (x < 10) return 1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster. – squelart ...
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querySelector, wildcard element match?

...to do a wildcard element name match using querySelector or querySelectorAll ? I see support for wildcards in attribute queries but not for the elements themselves. ...
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How to prevent long words from breaking my div?

...tc), you'll need overflow to make it not destroy the layout/design. So by all means use another method (or a combination of them) but remember to add overflow too so you cover all browsers. Edit 2 (to address your comment below): Start off using the CSS overflow property isn't perfect but it stop...
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onCreateOptionsMenu inside Fragments

...nsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_sample, menu); super.onCreateOptionsMenu(menu,inflater); } And in onCreate add this line to make the options appear in your Toolbar setHasOptionsMenu(true); ...
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Convert string to title case with JavaScript

...return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();}); }; Call it like: "pascal".toProperCase(); share | improve this answer | follow | ...
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C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...释放对象拥有权限、引用计数等,控制权转移等)。auto_ptr 即是一种常见的智能指针。 智能指针通常用类模板实现: template <class T> class smartpointer { private: T *_ptr; public: smartpointer(T *p) : _ptr(p) //构造函数 { } T& oper...
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Why doesn't Java allow to throw a checked exception from static initialization block?

Why doesn't Java allow to throw a checked exception from a static initialization block? What was the reason behind this design decision? ...
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Are there strongly-typed collections in Objective-C?

...hich means that the runtime doesn't care about the type of an object since all objects can receive messages. When you add an object to a built-in collection, they are just treated as if they were type id. But don't worry, just send messages to those objects like normal; it will work fine (unless of ...
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Error 908: Permission Receive SMS - #5 by Taifun - MIT App Inventor Help - MIT App Inventor Community

...in points from that thread here Google Play Store policy requires that all apps declaring the ability to send text and make phone calls directly without user intervention, or to receive texts and phone calls, require a manual review by Google staff. The MIT App Inventor Companion was one such ...
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Get the value of an instance variable given its name

... The most idiomatic way to achieve this is: some_object.instance_variable_get("@#{name}") There is no need to use + or intern; Ruby will handle this just fine. However, if you find yourself reaching into another object and pulling out its ivar, there's a reasonably good ...