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When to use nil, blank, empty? [duplicate]

... Here I made this useful table with all the cases share | improve this answer | follow | ...
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How to convert a data frame column to numeric type?

... and this is not the most confounding thing, but it can confuse you, especially if you read this before rolling into bed. Here goes: first two columns are character. I've deliberately called 2nd one fake_char. Spot the similarity of this character variable with one that Dirk created in his reply. I...
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How do I get the coordinates of a mouse click on a canvas element?

...t are not necessary anymore, as the clientX and clientY properties work in all current browsers. You might want to check out Patriques Answer for a simpler, more recent solution. Original Answer: As described in an article i found back then but exists no longer: var x; var y; if (e.pageX || e.page...
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How to “perfectly” override a dict?

...or other builtins) directly. It often makes no sense, because what you actually want to do is implement the interface of a dict. And that is exactly what ABCs are for. share | improve this answer ...
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What is the JavaScript convention for no operation?

... "function" // returns true It can be invoked as a function and essentially does nothing as shown here: setTimeout(function() { console.log('Start: ', Date.now()); Function.prototype(); console.log('End : ', Date.now()); }, 1000); Although this is a "true noop" since...
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Triggering HTML5 Form Validation

... @Mattisdada Calling .submit() does not work for me. @philfreo's solution works. Hmm. – Zero3 Nov 2 '15 at 1:37 1 ...
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How to remove frame from matplotlib (pyplot.figure vs matplotlib.figure ) (frameon=False Problematic

...though, you may want to make the axes take up the full figure. If you manually specify the location of the axes, you can tell it to take up the full figure (alternately, you can use subplots_adjust, but this is simpler for the case of a single axes). import matplotlib.pyplot as plt fig = plt.fig...
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Your branch is ahead of 'origin/master' by 3 commits

...didn't push them to remote. You have several ways to "solve" it and it normally depends on how your workflow looks like: In a good workflow your remote copy of master should be the good one while your local copy of master is just a copy of the one in remote. Using this workflow you'll never get th...
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Using Java with Nvidia GPUs (CUDA)

... First of all, you should be aware of the fact that CUDA will not automagically make computations faster. On the one hand, because GPU programming is an art, and it can be very, very challenging to get it right. On the other hand, beca...
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Are “while(true)” loops so bad? [closed]

... I wouldn't say it's bad - but equally I would normally at least look for an alternative. In situations where it's the first thing I write, I almost always at least try to refactor it into something clearer. Sometimes it can't be helped (or the alternative i...