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A numeric string as array key in PHP
...hat the behaviour is similar but not identical to JavaScript object keys.
foo = { '10' : 'bar' };
foo['10']; // "bar"
foo[10]; // "bar"
foo[012]; // "bar"
foo['012']; // undefined!
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When should I use a trailing slash in my URL?
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In my personal opinion trailing slashes are misused.
Basically the URL format came from the same UNIX format of files and folders, later on, on DOS systems, and finally, adapted for the web.
A typical URL for this book on a Unix-like operating system would be a file path such as...
Can anyone explain what JSONP is, in layman terms? [duplicate]
...nly used to
bypass the cross-domain policies in web browsers. (You are not allowed to make AJAX requests to a web page perceived to be on a different server by the browser.)
JSON and JSONP behave differently on the client and the server. JSONP requests are not dispatched using the XMLHTTPRequest an...
More elegant “ps aux | grep -v grep”
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brilliant hack (I think I should call it that, since the aux / grep authors probably did not think of this scenario.)
– Michael Trouw
Apr 12 '16 at 14:12
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How to un-submodule a Git submodule?
What are the best practices for un-submoduling a Git submodule, bringing all the code back into the core repository?
12 Ans...
How do I execute a command and get the output of the command within C++ using POSIX?
...use the C stdio API, I prefer the iostreams API. popen requires you to manually clean up the FILE handle, pstreams do that automatically. popen only accepts a const char* for the argument, which requires care to avoid shell injection attacks, pstreams allows you to pass a vector of strings similar t...
In which order do CSS stylesheets override?
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Actually, !important participates directly in the cascade, and has nothing to do with specificity. Specificity is related to selectors, whereas !important is used with property declarations. (So you're right in saying that the ru...
How to delete from a text file, all lines that contain a specific string?
How would I use sed to delete all lines in a text file that contain a specific string?
17 Answers
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How do I pass a variable by reference?
...will reassign the name to a new object whether it is immutable or not? def Foo(alist): alist = [1,2,3] will not modify the contents of the list from the callers perspective.
– Mark Ransom
Nov 15 '11 at 16:46
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Running Windows batch file commands asynchronously
... command line return immediately anyway, so to be sure, if you want to run all asynchronously, use START.
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