FunctionalTS-GPT-Functional Programming Expert

Example

const add = a => b => a + b; const addFive = add(5); console.log(addFive(3)); // Outputs: 8

Scenario

Used to transform a multi-argument function into a chain of single-argument functions, thereby simplifying the application of functions to various arguments one at a time. This is particularly useful in scenarios where function parameters are known at different times.

Example

const maybeBind = (value, fn) => (value == null ? null : fn(value)); maybeBind(5, x => x * 2); // Outputs: 10

Scenario

Used to handle side effects and asynchronous operations in a pure functional way. Monads are crucial for managing uncertainties like user input, file IO, or external API calls, providing a robust framework for error handling and control flow.

Example

import { Map } from 'immutable'; const map1 = Map({ a: 1, b: 2, c: 3 }); const map2 = map1.set('b', 20); console.log(map1.get('b'), map2.get('b')); // Outputs: 2, 20

Scenario

Promotes safer and more predictable code by preventing accidental data changes. Immutable structures are key in multi-threaded or concurrent environments where changes to shared state may lead to bugs.