Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

In the callback you have the key, the value, and the position in the document in form of a JSON Pointer string for each node in the document.You can do all kinds of calculations on these. If the node ...

It's a set of simple functions that let you query or set values on your objects by a given string path. v 2.0 - better handling of null/undefined. The default returned value is now undefined istead of ...

Every now and then I need to have a method support 2 or 3 arguments, providing a default value for one of them if only 2 are specified. My typical solution is to check the number of arguments passed ...