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.NET List Concat vs AddRange

...ed execution, using Concat would likely be faster because it avoids object allocation - Concat doesn't copy anything, it just creates links between the lists so when enumerating and you reach the end of one it transparently takes you to the start of the next! – Greg Beech ...
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How can I remove a key and its value from an associative array?

... +1: Thanks for the help. PHP newb here, but it's worth noting that if you are trying to perform these edits inside of a foreach loop, then you need to prepend an ampersand to your enumeration variable to allow write access. – Fr...
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How to check if a user likes my Facebook Page or URL using Facebook's API

...er or enter a promotion participant." - facebook.com/promotions_guidelines.php – Chris Jacob May 18 '11 at 1:25 1 ...
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How to use CURL via a proxy?

...ing version with your bugs removed. $url = 'http://dynupdate.no-ip.com/ip.php'; $proxy = '127.0.0.1:8888'; //$proxyauth = 'user:password'; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_PROXY, $proxy); //curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyauth); curl_seto...
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How to make an AJAX call without jQuery?

...ippet you can do similar things pretty easily, like this: ajax.get('/test.php', {foo: 'bar'}, function() {}); Here is the snippet: var ajax = {}; ajax.x = function () { if (typeof XMLHttpRequest !== 'undefined') { return new XMLHttpRequest(); } var versions = [ "MSXML...
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How to get a time zone from a location using latitude and longitude coordinates?

...-lookup-oss - JavaScript library GeoTimeZone - .NET library Geo-Timezone - PHP library timezonefinder - Python library ZoneDetect - C library Timeshape - Java library TimeZoneMap - Java and Android library lutz - R library go-tz - Go library Timezone lookup - Go library docker-timezone-lookup - doc...
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How enumerate all classes with custom class attribute?

...s to readability and maintainability. I challenge the statement that they allocate the fewest objects and performance will be faster (especially without empirical proof); you've basically written the Select extension method, and the compiler will generate a state machine just as it would if you cal...
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Display clearColor UIViewController over UIViewController

...und: MyModalViewController *modalViewController = [[MyModalViewController alloc] init]; modalViewController.modalPresentationStyle = UIModalPresentationOverCurrentContext; [self presentViewController:modalViewController animated:YES completion:nil]; ...
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Why is an int in OCaml only 31 bits?

... See the the "representation of integers, tag bits, heap-allocated values" section of https://ocaml.org/learn/tutorials/performance_and_profiling.html for a good description. The short answer is that it is for performance. When passing an argument to a function it is either passe...
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Creating a comma separated list from IList or IEnumerable

...| Error | StdDev | Min | Max | Median | Rank | Gen 0 | Allocated | ---------------------- |----- |-------- |---------:|----------:|----------:|---------:|---------:|---------:|-----:|-------:|----------:| StringJoin | Clr | Clr | 28.24 us | 0.4381 us | 0.3659 us ...