Higher-Order Functions in JavaScript

Higher-Order Functions in JavaScript — a practical guide to JavaScript higher-order functions with clear examples you can reuse in real projects.

JavaScript Tutorial Series (46/101). Prefer one article? Read the complete JavaScript tutorial.

Short description

map/filter/reduce and middleware patterns are HOFs.

HOF

function withLogging(fn) {
  return (...args) => {
    console.log('call', args);
    return fn(...args);
  };
}