To use JavaScript libraries together without conflicts, adopt encapsulation techniques like IIFE (Immediately Invoked Function Expression) to create a private scope for each library.

To use the “use strict” directive, you can either apply it to the whole script by placing it at the beginning of the file, or to a specific function by placing it inside the function body.

Developers use JavaScript promises to model asynchronous operations in web and server-side programs. Here's a quick look at five ways to use promises in your code.

The JavaScript method, Array.map(f) is a pure function in that it takes a function as a parameter. That last point about pure functions warrants further exploration. First-order functions vs. pure ...

Higher-Order Functions in JavaScript — M. David Green; Higher Order Functions: Using Filter, Map and Reduce for More Maintainable Code — Guido Schmitz; First-class and Higher Order Functions: ...