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How can I output leading zeros in Ruby?
...This name is used across programming languages. Way more people understand what sprintf does, compared to the number who know that format is an alias for it. Just because something is part of RuboCop does not make it inherently right or wrong. Pick the rules that make the most sense for your project...
Getting new Twitter API consumer and secret keys
... an API key. On the Twitter platform, the term "API key" usually refers to what's called an OAuth consumer key. This string identifies your application when making requests to the API. In OAuth 1.0a, your "API keys" probably refer to the combination of this consumer key and the "consumer secret," a ...
How to change plot background color?
...('xkcd:salmon')
ax.set_facecolor((1.0, 0.47, 0.42))
As a refresher for what colors can be:
matplotlib.colors
Matplotlib recognizes the following formats to specify a color:
an RGB or RGBA tuple of float values in [0, 1] (e.g., (0.1, 0.2, 0.5) or (0.1, 0.2, 0.5, 0.3));
a hex RG...
Implications of foldr vs. foldl (or foldl')
... strict. If you know that you'll have to traverse the whole list no matter what (e.g., summing the numbers in a list), then foldl' is more space- (and probably time-) efficient than foldr.
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Passing a method as a parameter in Ruby
...c or block, since you don't have to handle parameters - it just works with whatever the method wants.
– danuker
Jun 2 '16 at 11:52
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Create Test Class in IntelliJ
...g "Generate tests in same root as source?" trying the above, this was just what I needed.
– jgreve
Feb 22 at 3:36
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How to re-raise an exception in nested try/except blocks?
...of raise e being inside except AlsoFailsError). This is misleading because what actually happened is the other way around - we encountered AlsoFailsError, and handled it, while trying to recover from SomeError. To obtain a traceback that doesn't include AlsoFailsError, replace raise e with raise e f...
Cleanest way to toggle a boolean variable in Java?
...thod( theBoolean ^= true );
Since the assignment operator always returns what has been assigned, this will toggle the value via the bitwise operator, and then return the newly assigned value to be used in the method call.
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Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
...t up:
ctags one allows you to navigate to symbol declaration/definitions (what some would call a one-way lookup). ctags is a general purpose tool useful for many languages.
On the other hand (as mentioned on the project's page) cscope allows you to:
Go to the declaration of a symbol
Show a selec...
Display name of the current file in vim?
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@ives what does 1 and Ctrl+g mean separatly?
– jobima
Jan 10 '19 at 15:34
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