JavaScript has become one of my favorite languages. It is extremely flexible and powerful. It is not hard picking up the basics if you have programmed Java or C# before. But there are many features that are very hard to emulate or simply not possible in those languages. One example is the Function object’s call() operator. It allows execution of any function in the context of an object passed into the function, or, in other words, changing the this reference a function uses for the duration of the call.

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