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Distinct - It creates a copy of a given collection without duplicated elements DistinctBy - It also creates a copy given collection by kee...
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Java is impatient, So it does things eagerly, Doing lazy things with Java is not straightforward! Let's first understand What do we m...
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Discover functionality in Scala libraries. URL: http://scala-search.org/
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Function.Const create an anonymous function which return same output for any input or some fixed input. In below example it gives output 12 ...
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In Scala, objects are a singleton. Scala doesn’t have static class members (variables or methods). Instead, it has singleton objects. Sim...
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apply and unapply are the special methods in Scala. The apply method works like a constructor. Unapply uses to extract the object. The ... -
MongoDB is NoSQL Open Source database. It's document based database. Let's take an example to store cricket bat object: Cricket...
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We generally have dev server and production Server. Usually, Dev server has less data(test data). While working on a Complex application, S...
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The corresponds checks two collection indexes by index using the given predicate. Here isEven is a predicate that checks whether input numb...
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Sometimes it is necessary to express that the type of an object is a subtype of several other types. In Scala, this can be expressed with t...
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