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Using Auto Layout in UITableView for dynamic cell layouts & variable row heights

...each cell's content and subviews determine the row height (itself/automatically), while maintaining smooth scrolling performance? ...
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How to write asynchronous functions for Node.js

...difference is that they are not executed immediately but passed around as callbacks. How should I implement error event handling correctly Generally API's give you a callback with an err as the first argument. For example database.query('something', function(err, result) { if (err) handle(e...
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How can I get query string values in JavaScript?

... For a querystring of ?mykey=0&m.+key=1, calling getParameterByName("m.+key") would return 0 instead of 1. You need to escape the regular expression metacharacters in name before building your regular expression. And you only need to call .replace() once by using t...
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Why does Double.NaN==Double.NaN return false?

...enormalized value or a signed zero, and an operation that has no mathematically definite result produces NaN. All numeric operations with NaN as an operand produce NaN as a result. As has already been described, NaN is unordered, so a numeric comparison operation involving one or two NaNs returns fa...
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What are the reasons why Map.get(Object key) is not (fully) generic

...ethod is possible to have a Map<ArrayList, Something> and for me to call get() with a LinkedList as argument, and it should retrieve the key which is a list with the same contents. This would not be possible if get() were generic and restricted its argument type. ...
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What are the differences between Deferred, Promise and Future in JavaScript?

...the differences between Deferreds, Promises and Futures? Is there a generally approved theory behind all these three? 5 A...
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Can local storage ever be considered secure? [closed]

... with cryptography in client-side (browser) javascript are detailed below. All but one of these concerns does not apply to the WebCrypto API, which is now reasonably well supported. For an offline app, you must still design and implement a secure keystore. Aside: If you are using Node.js, use the ...
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Using Moq to mock an asynchronous method for a unit test

I am testing a method for a service that makes a Web API call. Using a normal HttpClient works fine for unit tests if I also run the web service (located in another project in the solution) locally. ...
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Cache an HTTP 'Get' service response in AngularJS?

...url, { cache: true}).success(...); or, if you prefer the config type of call: $http({ cache: true, url: url, method: 'GET'}).success(...); Cache Object You can also use a cache factory: var cache = $cacheFactory('myCache'); $http.get(url, { cache: cache }) You can implement it yourself usi...
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Filtering by Multiple Specific Model Properties in AngularJS (in OR relationship)

...dicate function can be used to write arbitrary filters. The function is called for each element of array. The final result is an array of those elements that the predicate returned true for. <input ng-model="query"> <tr ng-repeat="smartphone in smartphones | filter: search "> ...