In an ideal world the account of the Function object would come to an end at this point – you have enough to write any program you care to but not in a style most programmers would recognize. Most ...

and the round brackets at the end of the function definition call the function as soon as it has been defined. This is usually called an "Immediately Invoked Function Expression" or IIFE and is very ...

The first time I ever encountered a regular expression was many years ago now, but I still remember my first thoughts on it: What is this string-like thing? I don’t want to touch it, it looks scary. I ...