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What is this 'Lambda' everyone keeps speaking of?
...ut there are other higher order functions, like forEach, that perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numb...
Passing arguments to “make run”
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@Rob: $() is more portable, it works in Nmake as well as make.
– John Knoeller
Feb 6 '10 at 20:33
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When would I use XML instead of SQL? [closed]
... about the usage of XML/XSLT in general and in what situations it would be more useful than the approach I've always used, which is storing all of my data in a (My)SQL database and then using PHP/Python/etc. to work with it on the web as needed.
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Can CSS force a line break after each word in an element?
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Cross-Origin Request Headers(CORS) with PHP headers
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Handling CORS requests properly is a tad more involved. Here is a function that will respond more fully (and properly).
/**
* An example CORS-compliant method. It will allow any GET, POST, or OPTIONS requests from any
* origin.
*
* In a production environm...
Difference between array_map, array_walk and array_filter
...n (&$v, $k) { $v = floor($v); });
print_r($origarray2);
// this is a more proper use of array_walk
array_walk($origarray1, function ($v, $k) { echo "$k => $v", "\n"; });
// array_map accepts several arrays
print_r(
array_map(function ($a, $b) { return $a * $b; }, $origarray1, $origarra...
How to force NSLocalizedString to use a specific language
...t to call this sometime early in your application's startup. You can read more about language/locale preferences here: Internationalization Programming Topics: Getting the Current Language and Locale
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iphone Core Data Unresolved error while saving
...f NSError objects in the "top level" NSError object it returns if there is more than one problem (This is why you see error 1560, which indicates multiple problems, and an array of error 1570s). It appears that CoreData has a handful of keys it uses to stash information in the error it returns if t...
Run a Python script from another Python script, passing in arguments [duplicate]
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How do I get ASP.NET Web API to return JSON instead of XML using Chrome?
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