Cheat sheet: Arrays JavaScript Arrays are a very flexible data structure and used as lists, stacks, queues, tuples (e.g. pairs), etc. Some Using Arrays Creating Arrays, reading and writing elements:
ES6 JavaScript Compose Function Definition const compose = (...fns) => fns.reduceRight((prevFn, nextFn) => (...args) => nextFn(prevFn(...args)), value => value );