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Test if characters are in a string
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@GregSnow -- Tried system.time(a <- grepl("abc", vec)) and system.time(a <- grepl("abc", vec, fixed=TRUE)), and fixed=TRUE is still, if anything slightly slower. The difference isn't appreciable with these short strings, but fixed=TRUE still doesn...
Calculating the difference between two Java date instances
...Date class in Scala and want to compare a Date object and the current time. I know I can calculate the delta by using getTime():
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How to output a comma delimited list in jinja python template?
If I have a list of users say ["Sam", "Bob", "Joe"] , I want to do something where I can output in my jinja template file:
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How to set the holo dark theme in a Android app?
How can I set the dark holo theme in my app?
At this time I got this:
4 Answers
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Getting the name of a variable as a string
This thread discusses how to get the name of a function as a string in Python:
How to get a function name as a string?
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Removing list of vms in vagrant cache
... an accepted and upvoted answer, but this "prunes" the global-status list. Meaning that the VM no longer shows up in the list. The VM itself remains untouched, though. Meaning one still has to unregister and delete it manually. The very simple thing should be that vagrant does its job properly when ...
Bulk package updates using Conda
... that the latter will not update you from Python 2 to Python 3, but the former will show Python as being outdated if you do use Python 2).
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Do you use NULL or 0 (zero) for pointers in C++?
...er to avoid macros, so I use 0. Another problem with NULL is that people sometimes mistakenly believe that it is different from 0 and/or not an integer. In pre-standard code, NULL was/is sometimes defined to something unsuitable and therefore had/has to be avoided. That's less common these days.
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form_for but to post to a different action
... I dont think url_for is necessary. Also since controller is the same, you could use form_for @user, :url => :action => 'myaction'
– rubyprince
Mar 16 '11 at 3:32
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What is string_view?
string_view was a proposed feature within the C++ Library Fundamentals TS( N3921 ) added to C++17
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