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How can I reverse a NSArray in Objective-C?
... take advantage of the built-in reverseObjectEnumerator method on NSArray, and the allObjects method of NSEnumerator:
NSArray* reversedArray = [[startArray reverseObjectEnumerator] allObjects];
allObjects is documented as returning an array with the objects that have not yet been traversed with n...
Check if a program exists from a Makefile
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Sometimes you need a Makefile to be able to run on different target OS's and you want the build to fail early if a required executable is not in PATH rather than to run for a possibly long time before failing.
The excellent solution provided by engineerchuan requires making a target. However, if ...
Are Exceptions in C++ really slow
I was watching Systematic Error Handling in C++—Andrei Alexandrescu he claims that Exceptions in C++ are very very slow.
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How to execute PHP code from the command line?
...function_exists("my_func")) echo 'function exists'; directly with the command line without having to use a seperate php file.
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How to Disable landscape mode in Android?
How can I disable landscape mode for some of the views in my Android app?
31 Answers
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How to get document height and width without using jquery
How to get document height and width in pure javascript i.e without using jquery .
I know about $(document).height() and $(document).width() , but I want to do this in javascript .
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How to remove multiple deleted files in Git repository
I have deleted some files and git status shows as below.
16 Answers
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Read a variable in bash with a default value
... cases below, word is subject to tilde expansion, parameter expansion, command substitution, and arithmetic expansion.
So if you use webpath=${webpath:-~/httpdocs} you will get a result of /home/user/expanded/path/httpdocs not ~/httpdocs, etc.
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Renaming a branch while on pull request
...n't rename the branch with a pull request open without deleting the branch and removing the pull request. However, there's nothing stopping you from doing that, pushing a new branch with a new name, and creating a new pull request.
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WebClient vs. HttpWebRequest/HttpWebResponse
...aders, protocol, etc... In the response, you can also retrieve the cookies and headers
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