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Understanding NSRunLoop
... loop is an abstraction that (among other things) provides a mechanism to handle system input sources (sockets, ports, files, keyboard, mouse, timers, etc).
Each NSThread has its own run loop, which can be accessed via the currentRunLoop method.
In general, you do not need to access the run loop d...
Number of days between two dates in Joda-Time
...ime instances?
With ‘difference in days’ I mean if start is on Monday and end is on Tuesday I expect a return value of 1 regardless of the hour/minute/seconds of the start and end dates.
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How do I fix a NoSuchMethodError?
...ng a NoSuchMethodError error when running my Java program. What's wrong and how do I fix it?
28 Answers
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Include all existing fields and add new fields to document
...ne a $project aggregation stage where I can instruct it to add a new field and include all existing fields, without having to list all the existing fields.
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C++ SFINAE examples?
I want to get into more template meta-programming. I know that SFINAE stands for "substitution failure is not an error." But can someone show me a good use for SFINAE?
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How to change UIPickerView height
... have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder.
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Javascript add leading zeroes to date
...ers of the string.
So no matter what, we can add "0" to the day or month, and just ask for the last two since those are always the two we want.
So if the MyDate.getMonth() returns 9, it will be:
("0" + "9") // Giving us "09"
so adding .slice(-2) on that gives us the last two characters which is...
What is the correct way to restore a deleted file from SVN?
I deleted a file from a repo and now want to put it back. The best I can figure out is to:
9 Answers
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1052: Column 'id' in field list is ambiguous
I have 2 tables. tbl_names and tbl_section which has both the id field in them. How do I go about selecting the id field, because I always get this error:
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Scatterplot with marginal histograms in ggplot2
...he sample below in ggplot2 ? In Matlab it is the scatterhist() function and there exist equivalents for R as well. However, I haven't seen it for ggplot2.
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