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 ...

Consider a simple function called parrot that takes an argument and returns the argument. ... JavaScript tutorial: Add face detection to your web app. Jun 20, 2019 5 mins. how-to.

Observable JavaScript users, including those using Quarto, can also employ the md function to add styling to the string, such as bold text with **. So, this code md`The regions are **${region ...