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One is an array of arrays, and one is a 2d array. The former can be jagged, the latter is uniform. That is, a double[][] can validly be: Because each 阅读全文
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Comparer.Default PropertyComparer.Defaultdoesn't use yourFooComparerclass. It simply returns an instance of the internal classGenericComparer.This cla... 阅读全文
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The SolutionA major hint is in the fact we are given a dictionary. Because we are given this dictionary we can prep it in any way we like when the pro... 阅读全文
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Currying allows you to easily create custom functions by partially invoking an existing function. Here’s a simple example:var add = function(a,b) { ... 阅读全文
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Summaryprivate variablesare declared with the 'var' keyword inside the object, and can only be accessed by private functions and privileged methods.pr... 阅读全文
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Problem StatementGiven a large array of non-negative integer numbers, write a function which determines whether or not there is a number that appears ... 阅读全文
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SummaryYou cause a class to inherit usingChildClassName.prototype=newParentClass();.You need to remember to reset theconstructorproperty for the class... 阅读全文
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LINQ provides several aggregation extension methods: Aggregate, Average, Count, LongCount, Max, Min and Sum.The aggregation methods alltake a list of ... 阅读全文
