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Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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Granted that the behavior is inconsistent, but I think it's easy to imagine cases where this i...
JS: Check if date is less than 1 hour ago?
Is there a way to check if a date is less than 1 hour ago?
7 Answers
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Get application version name using adb
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185
adb shell dumpsys package my.package | grep versionName
as mentioned by @david and @Jeremy F...
What would cause an algorithm to have O(log log n) complexity?
...ons by a constant, the algorithm must shrink the problem size down to 0 or 1. This is why, for example, binary search has complexity O(log n).
Interestingly, there is a similar way of shrinking down the size of a problem that yields runtimes of the form O(log log n). Instead of dividing the input ...
Possible Loss of Fraction
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169
When you divide two int's into a floating point value the fraction portion is lost. If you cas...
Convert HH:MM:SS string to seconds only in javascript
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13 Answers
13
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Heroku free account limited?
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Heroku provides, for free, a 5MB database
Heroku provides, for free, 1 dyno. A dyno is an instance of your application running and responding to requests. If each instance of your application can serve each request in 100ms, then you get 600 requests/minute with the free account.
Your applica...
Swift class introspection & generics
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109
Well, for one, the Swift equivalent of [NSString class] is .self (see Metatype docs, though th...
Regular expression to return text between parenthesis
...r problem is really just this simple, you don't need regex:
s[s.find("(")+1:s.find(")")]
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