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How do I show/hide a UIBarButtonItem?
.../show one of the buttons depending on the state of the data in the main window.
37 Answers
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Java Reflection Performance
Does creating an object using reflection rather than calling the class constructor result in any significant performance differences?
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Difference between decimal, float and double in .NET?
What is the difference between decimal , float and double in .NET?
18 Answers
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How to import existing Git repository into another?
...like Jörg's answer it won't let you continue to use the other repo, but I don't think you specified that anyway.
Note: Since this was originally written in 2009, git has added the subtree merge mentioned in the answer below. I would probably use that method today, although of course this method do...
How do I use NSTimer?
How do I use an NSTimer ? Can anyone give me step by step instructions?
6 Answers
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How do I get the difference between two Dates in JavaScript?
...so the Date returns its time value. The + operator is overloaded, so might do addition, coercion to number or concatenation. Since Dates coerce to String in this case, + does concatenation. Confusion is not the fault of the Date object, but of overloading operators.
– RobG
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How can I pass arguments to a batch file?
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Please note that %* does not work everywhere! For instance, it does not work with DOSBox 0.73 (maybe this is a bug that should be reported).
– Denilson Sá Maia
Feb 8 '10 at 2:50
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How do I write output in same place on the console?
I am new to python and am writing some scripts to automate downloading files from FTP servers, etc. I want to show the progress of the download, but I want it to stay in the same position, such as:
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Make git automatically remove trailing whitespace before committing
...ges from my diffs, logs, merges, etc. I'm assuming that the easiest way to do this would be for git to automatically remove trailing whitespace (and other whitespace errors) from all commits as they are applied.
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How do you change the size of figures drawn with matplotlib?
How do you change the size of figure drawn with matplotlib?
17 Answers
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