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Finding the average of a list
...sum(l) / float(len(l))
There is no need to use reduce. It is much slower and was removed in Python 3.
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Bidirectional 1 to 1 Dictionary in C#
...neToOne<T, S> which is guaranteed to only contain one of each value and key (up to RefEquals anyway), and which can be searched using either key or value. Anyone know of one, or should I just implement it myself? I can't believe that I'm the first person to need this...
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Postgres NOT in array
I'm using Postgres' native array type, and trying to find the records where the ID is not in the array recipient IDs.
7 An...
Regex to replace multiple spaces with a single space
... string.replace(/\s\s+/g, ' ');
If you really want to cover only spaces (and thus not tabs, newlines, etc), do so:
string = string.replace(/ +/g, ' ');
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jQuery returning “parsererror” for ajax request
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I recently encountered this problem and stumbled upon this question.
I resolved it with a much easier way.
Method One
You can either remove the dataType: 'json' property from the object literal...
Method Two
Or you can do what @Sagiv was saying by returnin...
Segue to another storyboard?
...ard? I need to place a UITabBarController in a UINavigationController , and I'd like to keep them nice and separate.
6 A...
Change the current directory from a Bash script
...d /proc
}
The reason is that each process has its own current directory, and when you execute a program from the shell it is run in a new process. The standard "cd", "pushd" and "popd" are builtin to the shell interpreter so that they affect the shell process.
By making your program a shell funct...
Sending and Parsing JSON Objects in Android [closed]
I would like to send messages in the form of JSON objects to a server and parse the JSON response from the server.
11 Answe...
What's the equivalent of Java's Thread.sleep() in JavaScript? [duplicate]
...e of other SO questions that deal with threads in JavaScript:
JavaScript and Threads
Why doesn't JavaScript support multithreading?
And this question may also be helpful:
setTimeout - how to avoid using string for callback?
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Where is Xcode's build folder?
...ng from a script, I'd like to actually find the build (so I can package it and send via TestFlight :) How do I determine which of the many MyAppName-xxxx-s is the right one? Thanks! (Note to Heath: in this particular case, I don't want to force output with the CONFIGURATION_BUILD_DIR parameter, a...