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'App not Installed' Error on Android

... edited Jun 20 at 9:12 Community♦ 111 silver badge answered Mar 5 '17 at 18:28 Chris GongChris Gong...
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WebDriver: check if an element exists? [duplicate]

... this is the recommended way to look for non-exist element in selenium javadoc, just in case anyone needs a pointer to it: selenium.googlecode.com/git/docs/api/java/org/openqa/selenium/… – Chen Xie M...
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Java Enum Methods - return opposite direction enum

...irection.SOUTH. Here is little more "hacky" way to illustrate @jedwards comment but it doesn't feel as flexible as first approach since adding more fields or changing their order will break our code. public enum Direction { NORTH, EAST, SOUTH, WEST; // cached values to avoid recreating ...
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What is a clean, pythonic way to have multiple constructors in Python?

...s = None): if num_holes is None: ... Now if you want complete freedom of adding more parameters: class Cheese(): def __init__(self, *args, **kwargs): #args -- tuple of anonymous arguments #kwargs -- dictionary of named arguments self.num_holes = kwa...
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java.util.regex - importance of Pattern.compile()?

What is the importance of Pattern.compile() method? Why do I need to compile the regex string before getting the Matcher object? ...
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Why does document.querySelectorAll return a StaticNodeList rather than a real Array?

...elements, because they don't want to stymie some poor little language that comes along that wants to implement getElementsByFoo() but cannot support operator overloading. It's a prevalent philosophy present throughout much of the spec. John Resig has voiced a similar option as yours, to which he ad...
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What order are the Junit @Before/@After called?

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How to generate an entity-relationship (ER) diagram using Oracle SQL Developer

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How do I test if a variable is a number in Bash?

...ular expression has to be saved in a variable, but if it's for the sake of compatibility I don't think it's necessary. You could just apply the expression directly: [[ $yournumber =~ ^[0-9]+$ ]]. – konsolebox Aug 31 '13 at 21:48 ...
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Hidden Features of C#? [closed]

... isn't C# per se, but I haven't seen anyone who really uses System.IO.Path.Combine() to the extent that they should. In fact, the whole Path class is really useful, but no one uses it! I'm willing to bet that every production app has the following code, even though it shouldn't: string path = dir ...