For example, using closures along with higher-order functions used to be the only way we could have “private” or tamper-proof variables in JavaScript: ...

including JavaScript, a functional programmer has unique considerations to approach and use functions. This tutorial explains what is different and special about a functional programmer's approach, ...

Version 2 also features support for async functions syntax, the future object destructuring syntax, and JSX, which is JavaScript with interspersed XML elements. The primary goals of CoffeeScript 2 ...