JavaScript’s reduce is one of the most useful array methods that should be in a developer’s arsenal. Introduced in ES5, it’s somewhat similar to for…each and map methods that are used with ...

The map() method creates a new array populated with the results of the callback function for each element in the array. Similar to the other methods, the callback function will receive three ...

Learn JavaScript's Array Reduce method in 100 seconds. Take many things and reduce them down to one thing. In just 100 ...