This will give you a better idea of when to use the JavaScript reducer for optimal performance in your program. First, we check if the reduce method was called on a null or undefined object.

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

If you need to program in JavaScript but resent typing so many semicolons or curly brackets, then CoffeeScript is for you. The guts of CoffeeScript are the same as JavaScript because it’s not ...

A simple reactive program Reactive programming bears a resemblance to functional programming and draws inspiration from it; you could say it’s like functional programming with superpowers.