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examining history of deleted file
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When you want to look at old files you really should know the difference between:
svn cat http://server/svn/project/file -r 1234
and
svn cat http://server/svn/project/file@1234
The first version looks at the path that is now available as http://server/svn/proj...
Can you animate a height change on a UITableViewCell when selected?
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I found a REALLY SIMPLE solution to this as a side-effect to a UITableView I was working on.....
Store the cell height in a variable that reports the original height normally via the tableView: heightForRowAtIndexPath:, then when you wa...
Does Foreign Key improve query performance?
...n FK does not create an associated index, and you should create indexes on all FK fields to improve look up times.
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]
... twenty years, but there's one aspect of these languages that I've never really understood. I've obviously used regular casts i.e.
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Comparing two dictionaries and checking how many (key, value) pairs are equal
... will fail on values that aren't hashable.
– Tim Tisdall
Apr 10 '17 at 13:51
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Conversion failed when converting date and/or time from character string while inserting datetime
...pendent of the dateformat settings in your SQL Server and will NOT work in all situations!
or:
YYYY-MM-DDTHH:MM:SS for dates and times - note here: this format has dashes (but they can be omitted), and a fixed T as delimiter between the date and time portion of your DATETIME.
This is valid for...
Keyboard shortcut to paste clipboard content into command prompt window (Win XP) [closed]
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I personally use a little AutoHotkey script to remap certain keyboard functions, for the console window (CMD) I use:
; Redefine only when the active window is a console window
#IfWinActive ahk_class ConsoleWindowClass
; Close Comm...
filter for complete cases in data.frame using dplyr (case-wise deletion)
...data.frame for complete cases using dplyr? complete.cases with a list of all variables works, of course. But that is a) verbose when there are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame).
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
...ting thread makes the reference to the map visible to other threads.
Basically, the only possible race here is between the construction of the HashMap and any reading threads that may access it before it is fully constructed. Most of the discussion is about what happens to the state of the map obje...
Finding what methods a Python object has
Given a Python object of any kind, is there an easy way to get the list of all methods that this object has?
19 Answers
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