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Measure elapsed time in Swift
How can we measure the time elapsed for running a function in Swift? I am trying to display the elapsed time like this: "Elapsed time is .05 seconds". Saw that in Java , we can use System.nanoTime(), is there any equivalent methods are available in Swift to accomplish this?
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How do you create a read-only user in PostgreSQL?
...user can connect but has no other privileges. You have to grant USAGE on namespaces (schemas) and SELECT on tables and views individually like so:
GRANT CONNECT ON DATABASE mydb TO xxx;
-- This assumes you're actually connected to mydb..
GRANT USAGE ON SCHEMA public TO xxx;
GRANT SELECT ON mytable ...
Why does MYSQL higher LIMIT offset slow the query down?
...GB in size]. The higher LIMIT offset with SELECT, the slower the query becomes, when using ORDER BY *primary_key*
6 Ans...
How do you save/store objects in SharedPreferences on Android?
...lds. After login, I want to save/store these user objects. How can we implement this kind of scenario?
20 Answers
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GLib compile error (ffi.h), but libffi is installed
...m for 32bit then you need to install libffi-dev:i386. It wasn't obvious to me. :)
– Björn Lindqvist
May 29 '15 at 10:31
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Asynchronous Requests with Python requests
I tried the sample provided within the documentation of the requests library for python.
12 Answers
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Why doesn't Java support unsigned ints?
...m an interview with Gosling and others, about simplicity:
Gosling: For me as a language designer, which I don't really count myself as these days, what "simple" really ended up meaning was could I expect J. Random Developer to hold the spec in his head. That definition says that, for instance, J...
How to get a vertical geom_vline to an x-axis of class date?
...e group on POSIXct and geom_vline , I could not get it done. I have a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line at all or the vertical line is drawn at the ve...
ProcessStartInfo hanging on “WaitForExit”? Why?
...u redirect StandardOutput and/or StandardError the internal buffer can become full. Whatever order you use, there can be a problem:
If you wait for the process to exit before reading StandardOutput the process can block trying to write to it, so the process never ends.
If you read from StandardOut...
System.currentTimeMillis vs System.nanoTime
What I would like to know is whether I should use System.currentTimeMillis() or System.nanoTime() when updating my object's positions in my game? Their change in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
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