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What is the best way(s) to fake function overloading in Javascript?
I know it is not possible to overload functions in Javascript as in other languages. If I needed a function with two uses foo(x) and foo(x,y,z) which is the best / preferred way:
y = y || 'default' 
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JavaScript does not support function overloading natively. If we will add functions with the same name and different arguments, it considers the last defined function.
You need to be careful while overloading a method in Java, especially after the introduction of autoboxing in Java 5. Poorly overloaded method not only adds confusion among developers who use that but also they are error-prone and leaves your program at compiler's mercy to select proper method.
Function declarations that have equivalent parameter declarations. These declarations are not allowed because they would be declaring the same function. Function declarations with parameters that differ only by the use of typedef names that represent the same type.
In C++ we can overcome this by making use of using A::get but in SV how to avoid function hiding and access the parent class function get()? there is no overloading in system verilog. So, just use different names for the functions.
The best way to do function overloading with parameters is not to check the argument length or the types; checking the types will just make your code slow and you have the fun of Arrays, nulls, Objects, etc.
What most developers do is tack on an object as the last argument to their methods. This object can hold anything.
function foo(a, b, opts) { // ... if (opts['test']) { } //if test param exists, do something.. } foo(1, 2, {"method":"add"}); foo(3, 4, {"test":"equals", "bar":"tree"}); Then you can handle it anyway you want in your method. [Switch, if-else, etc.]
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