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Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
I had a Macintosh I used to develop iPhone apps with using XCode 4.
I now have a new Macintosh with a new install of... everything.
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Changing Vim indentation behavior by file type
...avior of Vim based on the file type? For instance, if I open a Python file it should indent with 2 spaces, but if I open a Powershell script it should use 4 spaces.
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~x + ~y == ~(x + y) is always false?
... contradiction. Therefore, ~(x+y) != ~x + ~y for all x and y (mod 2n).
*It is interesting to note that on a machine with one's complement arithmetic, the equality actually holds true for all x and y. This is because under one's complement, ~x = -x. Thus, ~x + ~y == -x + -y == -(x+y) == ~(x+y).
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What is the difference between a deep copy and a shallow copy?
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Shallow copies duplicate as little as possible. A shallow copy of a collection is a copy of the collection structure, not the elements. With a shallow copy, two collections now share the individual elements.
Deep copies duplicate everything. A deep c...
How do I subtract minutes from a date in javascript?
...to working js [don't worry about where the end date comes from except that it's a valid javascript date].
9 Answers
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JavaScript plus sign in front of function expression
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It forces the parser to treat the part following the + as an expression. This is usually used for functions that are invoked immediately, e.g.:
+function() { console.log("Foo!"); }();
Without the + there, if the parser is ...
Asynctask vs Thread in android
...ally two ways to do this: Java threads, and Android's native AsyncTask.
Neither one is necessarily better than the other, but knowing when to use each call is essential to leveraging the system's performance to your benefit.
Use AsyncTask for:
Simple network operations which do not require downl...
Reading a resource file from within jar
I would like to read a resource from within my jar like so:
15 Answers
15
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What is the difference between 'typedef' and 'using' in C++11?
I know that in C++11 we can now use using to write type alias, like typedef s:
7 Answers
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read.csv warning 'EOF within quoted string' prevents complete reading of file
...open the file in a spreadsheet program I can see 112,544 rows. When I read it into R with read.csv I only get 56,952 rows and this warning:
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