In the JavaScript world, almost everything you see is an object. If you understand objects, you understand Javascript. There are lots of static methods where you can create objects, copy objects, seal ...

The JavaScript filter() method looks like any other method, except that it accepts parameters that provide more options for manipulating the data within an array. The filter() method accepts two named ...

The reduce() method takes two parameters: a callback function and an optional initial value. In the callback function, it takes an accumulator as its first parameter and the value of the current array ...

Generates dynamic prototype methods for JavaScript objects (classes) by supporting method definition within their "class" constructor (like an instance version), this removes the need to expose ...