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“Warning: iPhone apps should include an armv6 architecture” even with build config set

... If using Xcode 4.2 or higher, try the following: Click your Project name (in the left column), followed by the Target: Click the 'Build Settings' tab (in the right column): Click the 'Release' or 'Distribution' row under 'Archit...
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Is there a way to provide named parameters in a function call in JavaScript?

...l arguments and the last argument is an object with named arguments. For example: var parameterfy = (function() { var pattern = /function[^(]*\(([^)]*)\)/; return function(func) { // fails horribly for parameterless functions ;) var args = func.toString().match(pattern)[1]...
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Check if $_POST exists

I'm trying to check whether a $_POST exists and if it does, print it inside another string, if not, don't print at all. 14 ...
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Calling a Method From a String With the Method's Name in Ruby

... 2, 3] a.send("length") # or a.public_send("length") which returns 3 as expected or for a module function FileUtils.send('pwd') # or FileUtils.public_send(:pwd) and a locally defined method def load() puts "load() function was executed." end send('load') # or public_send('load') Docum...
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Print array to a file

... Either var_export or set print_r to return the output instead of printing it. Example from PHP manual $b = array ( 'm' => 'monkey', 'foo' => 'bar', 'x' => array ('x', 'y', 'z')); $results = print_r($b, true); //...
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Get the latest record from mongodb collection

...s are inserted in. Edit: For all the downvoters, above is a Mongoose syntax, mongo CLI syntax is: db.collectionName.find({}).sort({$natural:-1}).limit(1) share | improve this answer | ...
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What does the caret operator (^) in Python do?

... It's a bitwise XOR (exclusive OR). It results to true if one (and only one) of the operands (evaluates to) true. To demonstrate: >>> 0^0 0 >>> 1^1 0 >>> 1^0 1 >>> 0^1 1 To explain one of your own exa...
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How do I best silence a warning about unused variables?

... You can put it in "(void)var;" expression (does nothing) so that a compiler sees it is used. This is portable between compilers. E.g. void foo(int param1, int param2) { (void)param2; bar(param1); } Or, #define UNUSED(expr) do { (void)(expr); } ...
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Are email addresses case sensitive?

...t of e-mail is case sensitive, however I've tried to send e-mail to name@example.com , Name@example.com and NAME@example.com - it has arrived in each case. ...
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How can I list all commits that changed a specific file?

...all commits regarding that filename (not actual file). If you create files X and Y, changed both, then deleted Y and renamed X to Y and then also changed it, and you run git log Y, you will get messages for both old Y and new one. And the opposite, with --follow you will get commits regarding that f...