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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including taskorama. Try it out:
const Task = require("taskorama").default
// Task.of()
const syncTask = Task.of(42)
// Task.map()
const mappedTask = syncTask.map(x => x * 2)
// .fork(cbError, cbSuccess) or .run(cbSuccess)
syncTask.fork(console.error, console.log)
// or
syncTask.run(console.log)
// They both log 42 to the console
// Task.chain() or Task.flatMap()
const taskChain = Task.wait(2000, `go`)
.chain(value => Task.wait(2000, `${value} - foo`))
.chain(value => Task.wait(2000, `${value} - bar`))
.flatMap(value => Task.wait(2000, `${value} - baz`))
const startTime = Date.now()
const execChain = taskChain.fork(
console.error,
(x) => console.log(`Chain : Task '${x}' has finished after ${Date.now() - startTime}ms`)
)
// Task.all() and Task.race()
const taskArray = [
Task.wait(2000,`one`),
Task.wait(3000,`two`),
Task.wait(1000,`three`),
Task.wait(4000,`four`),
]
const tasksAll = Task.all(taskArray)
const execAll = tasksAll.run(
(x) => console.log(`All : Task '${x}' has finished after ${Date.now() - startTime}ms`)
)
const tasksRace = Task.race(taskArray)
const execRace = tasksRace.run(
(x) => console.log(`Race : Task '${x}' has finished first after ${Date.now() - startTime}ms`)
)
// Task.fromPromise()
const p = Promise.resolve(2)
const taskFromPromise = Task.fromPromise(p)
const execTaskFromPromise = taskFromPromise.run(
(x) => console.log(`fromPromise : Task from promise -> ${x}`)
)
// Cancelling a task
const timeoutTask = Task.wait(10000, "I'm done !")
const canceller = Task.wait(3000, "I cancelled it !")
const execTimeout = timeoutTask.fork(console.error, console.log)
const execCanceller = canceller.fork(
console.error,
function (result) {
execTimeout.cancel()
console.log(result)
}
)
// Outputs "I cancelled it !" after 3 sec
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require()any package directly from npm- use arrow functions, classes, template strings, and most of ES6
awaitany promise instead of using callbacks (example)- create your own embedded node.js snippets
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