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Why use Abstract Base Classes in Python?
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Simple logical operators in Bash
... ] single brackets are an alternate form of conditional expressions with more quirks (but older and more portable). Don't write any for now; start worrying about them when you find scripts that contain them.
This is the idiomatic way to write your test in bash:
if [[ $varA == 1 && ($varB ...
How are ssl certificates verified?
... will be used to encrypt the HTTP traffic on this connection; this is much more efficient than using public/private key encryption for everything. Your browser encrypts the symmetric key with the public key of the web server then sends it back, thus ensuring that only the web server can decrypt it,...
Java Date vs Calendar
...stion to use joda time. It is easier to use and understand and offers much more functionality you can use.
– Jeroen van Bergen
Sep 10 '09 at 9:34
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How can I add the new “Floating Action Button” between two widgets/layouts
... I can see why this a better answer than HughJeffner's. I find it simpler, more flexible, less hackish. You don't hardcode any layout_height or margin values, which could vary in time or be defined dynamically. Hugh's answer could work in some simple cases, and perhaps could be a workaround for some...
Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
... the only drawback I saw is that top header will not be shown anymore (you can see it only through scrolling up). At least for me it is not shown
– Ruzard
Dec 15 '12 at 16:49
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How to toggle a value in Python
... A else A
>>> x
[4, 5, 6]
Solution using itertools
If you have more than two values, the itertools.cycle() function provides a generic fast way to toggle between successive values:
>>> import itertools
>>> toggle = itertools.cycle(['red', 'green', 'blue']).next
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Prepend a level to a pandas MultiIndex
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Not working anymore. TypeError: unhashable type: 'list'
– cduguet
Nov 11 '18 at 16:27
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How to clear MemoryCache?
...-- including all of the answers above that use LINQ queries.
A better and more flexible solution
Here's an efficient way of clearing the cache that simply builds on the existing change monitoring infrastructure. It also provides the flexibility to clear either the entire cache or just a named sub...