naming-conventions

What is quote ' used for? I have read about curried functions and read two ways of defining the add function - curried and uncurried. The curried version... myadd' :: Int -> Int -> Int myadd' x y = x + y ...but it works equally well without the quote. So what is the point of the ' ? The quote means nothing to Haskell. It is just part of the name of that function. People tend to use this for "internal" functions. If you have a function that sums a list by using an accumulator argument, your sum function will take two args. This is ugly, so you make a sum' function of two args, and a sum

I had started programming in java 2 years back. Seniors in our project at that time had advised me to append 'obj' to the name of the object which is being created. Ex: Car objCar = new Car("Ferrari"); Here objCar is what am talking about. But many at Stack overflow had opposed it and now I find that this shouldn't be the way naming of an object should be done. Am clear with naming conventions when collections are used but am confused when objects of general classes are created. Can anyone shed some light on it ? Just call it car . Hungarian notation is not used by Sun/Oracle. Name your

I have a little project in which I named two same name function in two different source file, but while I building the project, the compiler failed with 'func_name already defined in filename.obj'. Why could not I have two functions with the same name in two different source files? I thought the function should be local to the source file only if when we declared it in the header file will it become global. And except for changing the filename, are there any other elegant solution to duplicated function name in the C programming language? In C, a function has global scope by default. To

What is the meaning of underscore in visual basic? I have this code: Private _isAuthenticated As Boolean Is that the same as doing this? Private isAuthenticated As Boolean Or does adding the underscore to the front of the name do something special? 勿绮语 It's a convention. A leading _ often indicates that the variable is private to the class. This convention is commonly used in many different languages, not just VB. In a similar sense, it also indicates that the variable is the local variable behind a property. However it has no significant meaning to the compiler. FYI: if you are looking at VB

According to the offical style guide you should Avoid prefixing private properties and methods with an underscore. As I come from a Java background, I usually would just use the this keyword: export default class Device { private id: string; constructor(id: string) { this.id = id; } public get id(): string { // [ts] Duplicate identifier 'id'. return this.id; } public set id(value: string) { // [ts] Duplicate identifier 'id'. this.id = value; } } But the TypeScript compiler complains: [ts] Duplicate identifier 'id'. Is there a convention or best practice for parameter naming in a TypeScript