task-vs-promise.ts

// Task
const logTask = Task.sync<string, void>(text => console.log(text));
const taskA = Task.delay(1000).map(() => 1 + 2 + 3).map(String);
const taskB = Task.resolve('Hello');
Task.all([taskA, taskB]).map(xs => xs.join(', ')).next(logTask).run();
Task.race([taskA, taskB]).next(logTask).run();

// Promise
const logPromise = (text: string) => console.log(text);
const promiseA = new Promise<void>(resolve => setTimeout(resolve, 1000)).then(() => 1 + 2 + 3).then(String);
const promiseB = Promise.resolve('Hello');
Promise.all([promiseA, promiseB]).then(xs => xs.join(', ')).then(logPromise);
Promise.race([promiseA, promiseB]).then(logPromise);