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Do sessions really violate RESTfulness?

Is using sessions in a RESTful API really violating RESTfulness? I have seen many opinions going either direction, but I'm not convinced that sessions are RESTless . From my point of view: ...
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Does .NET have a way to check if List a contains all items in List b?

...s easy: public class ListHelper<T> { public static bool ContainsAllItems(List<T> a, List<T> b) { return !b.Except(a).Any(); } } This checks whether there are any elements in b which aren't in a - and then inverts the result. Note that it would be slightly mo...
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window.onload vs

...load is less obtrusive though - it takes your JavaScript out of the HTML. All of the common JavaScript libraries, Prototype, ExtJS, Dojo, JQuery, YUI, etc. provide nice wrappers around events that occur as the document is loaded. You can listen for the window onLoad event, and react to that, but on...
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What are all the common ways to read a file in Ruby?

What are all the common ways to read a file in Ruby? 10 Answers 10 ...
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'git status' shows changed files, but 'git diff' doesn't

I've had a look at all similar questions. However, I've double checked and something strange is definitely happening. 13 An...
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How can I remove a specific item from an array?

... first match of 5 from [2,5,9,1,5,8,5]), while the second function removes all occurrences: function removeItemOnce(arr, value) { var index = arr.indexOf(value); if (index > -1) { arr.splice(index, 1); } return arr; } function removeItemAll(arr, value) { var i = 0; ...
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Deleting all files in a directory with Python

I want to delete all files with the extension .bak in a directory. How can I do that in Python? 7 Answers ...
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How does PHP 'foreach' actually work?

...r the simplest case is Traversable objects, as for these foreach is essentially only syntax sugar for code along these lines: foreach ($it as $k => $v) { /* ... */ } /* translates to: */ if ($it instanceof IteratorAggregate) { $it = $it->getIterator(); } for ($it->rewind(); $it->v...
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Laravel Check If Related Model Exists

...hp 7.2+ you can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below: $model->relation()->exists() generic solution working on all the relation types (pre php 7.2): if (count($model->relation)) { ...
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Fastest way to iterate over all the chars in a String

In Java, what would the fastest way to iterate over all the chars in a String, this: 8 Answers ...