
What is the 'new' keyword in JavaScript? - Stack Overflow
It executes the constructor function, using the newly created object whenever this is mentioned. It returns the newly created object, unless the constructor function returns a non- null object reference. …
What's the difference between an argument and a parameter?
Oct 1, 2008 · 18 Generally speaking, the terms parameter and argument are used interchangeably to mean information that is passed into a function. Yet, from a function's perspective: A parameter is the …
What is the difference between a function and a subroutine?
A function is outside the namespace of the rest of the program. It is like a separate program that can have the same variable names as used in the calling program, and whatever it does to them does …
javascript - What is 'Currying'? - Stack Overflow
In a functional language, you could pass in the mass of the earth to the function and then partially evaluate it. What you'd get back is another function that takes only two arguments and calculates the …
How do function pointers in C work? - Stack Overflow
357 Function pointers in C can be used to perform object-oriented programming in C. For example, the following lines is written in C:
JavaScript error: "is not a function" - Stack Overflow
It was attempted to call a value like a function, but the value is not actually a function. Some code expects you to provide a function, but that didn't happen.
How do I define a function with optional arguments?
466 I have a Python function which takes several arguments. Some of these arguments could be omitted in some scenarios.
What is the naming convention in Python for variables and functions ...
See Python PEP 8: Function and Variable Names: Function names should be lowercase, with words separated by underscores as necessary to improve readability. Variable names follow the same …
var functionName = function() {} vs function functionName() {}
Dec 3, 2008 · The difference is that functionOne is a function expression and so only defined when that line is reached, whereas functionTwo is a function declaration and is defined as soon as its …
What is a callback function? - Stack Overflow
May 5, 2009 · A callback function is a function which is: accessible by another function, and is invoked after the first function if that first function completes A nice way of imagining how a callback function …