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How to detect the device orientation using CSS media queries?

... CSS to detect screen orientation: @media screen and (orientation:portrait) { … } @media screen and (orientation:landscape) { … } The CSS definition of a media query is at http://www.w3.org/TR/css3-mediaqueries/#orientation ...
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乐高机器人®组件 · App Inventor 2 中文网

... Specifies the bottom of the range used for the BelowRange, WithinRange, and AboveRange events. ColorChangedEventEnabled Specifies whether the ColorChanged event should fire when the DetectColor property is set to True and the detected color changes Mode The current mode of the sensor. On...
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endsWith in JavaScript

...th) === suffix approach is fastest on Chrome, the same on IE11 as indexOf, and only 4% slower (fergetaboutit territory) on Firefox: jsperf.com/endswith-stackoverflow/14 And faster across the board when the result is false: jsperf.com/endswith-stackoverflow-when-false Of course, with ES6 adding endsW...
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Naming Classes - How to avoid calling everything a “Manager”? [closed]

... but where possible I try to copy the names already in the .NET framework, and I look for ideas in the Java and Android frameworks. It seems Helper, Manager, and Util are the unavoidable nouns you attach for coordinating classes that contain no state and are generally procedural and static. An alte...
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Why should the “PIMPL” idiom be used? [duplicate]

...ged much anyway. The code I'm looking at seems to be taking the safe road and using pimpl everywhere. – JeffV Sep 13 '08 at 15:23 1 ...
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Difference between ref and out parameters in .NET [duplicate]

What is the difference between ref and out parameters in .NET? What are the situations where one can be more useful than the other? What would be a code snippet where one can be used and another can't? ...
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How do I install Python OpenCV through Conda?

...to import cv2.cv (am I missing something obvious?) – Andy Hayden Aug 13 '15 at 5:03 2 This works ...
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Setting PayPal return URL and making it auto return?

... Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypal.com The My Account Overview page appears. Click the gear icon top right. The Profile Summary page appears. Click the My Selling Preferences link in the left column. Under the Selling Online section, ...
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How do I get PyLint to recognize numpy members?

... @Peter 's solution working in Windows 7 x64 and Visual Studio Code 1.15.1!! – BSP Sep 4 '17 at 13:15 3 ...
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How to prevent buttons from submitting forms

..., should not f#$'n have a default type of submit. It's just plain idiotic, and a huge mistake in the spec. I use buttons in forms all the time, and even if it were an edge case (which it isn't), it'd still make sense to have the default type be submit. – dudewad ...