What we can see: function declaration creates two objects: foo itself and foo.prototype, even if foo does not going to be used as a constructor foo inherits directly from Function.prototype; ...

You can use function constructor along with new keyword when you want to define your function dynamically. Function constructor accepts any number of string arguments. This is the syntax for it: var ...

Arrow functions are a short-hand notation for writing functions in ES6. The arrow function definition consists of a parameter list ( ... ), followed by the => marker and a function body. For ...

Arrow functions in ES6 offer a concise syntax and better handling of this keyword, improving both readability and functionality. a. Concise Syntax: Arrow functions use a shorter syntax compared to ...

Another interesting new concept in ES6 called Modules is something that JavaScript developers have been using for years. Some projects, like Webpack , let you take advantage of modularization now.