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WebDriver: check if an element exists? [duplicate]

...Link.Exists) { myLink.Click(); } Here is how you extend IWebElement & IWebDriver IWebDriver.FindElementSafe /// <summary> /// Same as FindElement only returns null when not found instead of an exception. /// </summary> /// <param name="driver">current br...
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How to get random value out of an array?

... Since PHP 7.1, array_rand() uses the Mersenne Twister generator: rand() aliased to mt_rand() and srand() aliased to mt_srand(). In practice it should now be good enough. – Gras Double Jun 29 '...
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Get yesterday's date in bash on Linux, DST-safe

...esses the OP's issue. This way, future visitors can learn from your post, & apply it to their own code. SO is not a coding service, but a resource for knowledge. High quality, complete answers reinforce this idea, and are more likely to be upvoted. These features, plus the requirement that all p...
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Removing a list of characters in string

... If you're using python2 and your inputs are strings (not unicodes), the absolutely best method is str.translate: >>> chars_to_remove = ['.', '!', '?'] >>> subj = 'A.B!C?' >>> subj.translate(None, ''...
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LINQ Select Distinct with Anonymous Types

...r own Distinct Extension method which takes lambda expression. Here's an example Create a class which derives from IEqualityComparer interface public class DelegateComparer<T> : IEqualityComparer<T> { private Func<T, T, bool> _equals; private Func<T, int> _hashCode;...
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Getting an empty JQuery object

...my case. Maybe I should open a question about it, but I solved it by using PHP instead of jQuery so I can't really dig more into it right now. – cregox Mar 2 '11 at 19:02 2 ...
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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte

I am using Python-2.6 CGI scripts but found this error in server log while doing json.dumps() , 15 Answers ...
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No module named _sqlite3

...d re-compiled Python with ./configure --enable-loadable-sqlite-extensions && make && sudo make install Note The sudo make install part will set that python version to be the system-wide standard, which can have unforseen consequences. If you run this command on your workstation,...
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Iterate a list as pair (current, next) in Python

...(b, None) return itertools.izip(a, b) How this works: First, two parallel iterators, a and b are created (the tee() call), both pointing to the first element of the original iterable. The second iterator, b is moved 1 step forward (the next(b, None)) call). At this point a points to s0 and b...
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Bash: Copy named files recursively, preserving folder structure

... Have you tried using the --parents option? I don't know if OS X supports that, but that works on Linux. cp --parents src/prog.js images/icon.jpg /tmp/package If that doesn't work on OS X, try rsync -R src/prog.js images/icon.jpg /tmp/package as aif suggested. ...