syncope v0.1.0

SYNCOPE

Disclaimer

This is not even an alpha version, please do not use it. 1. Node.js 8 supported due the usage of async/await operators. 2. Only three basic methods provided: .filter() .map() .reduce()

3. There is no tests that provided callback will get all expected params. Only the value for .filter() and .map(), and accumulator with value for .reduce() guarateed.

Description

Makes async operations over any iterable (in perspective, for now only over arrays) object as simple as the sync ones.

How to use

const executor = input => {
    return Promise.resolve(input);
};
const otherExecutor = input => {
    return new Promise((res, rej) => setTimeout(() => res(input), 1000));
};
const nextExecutor = async input => {
    return await Promise.resolve(input);
};

const onlyAsyncCallbacks = await syncope([1, 2, 3])
    .filter(async v => await executor(v < 3))
    .map(v => otherExecutor(v + 1))
    .reduce(async (a, v) => await nextExecutor(a + v), 0);

if (onlyAsyncCallbacks !== 5) throw new Error('first result is wrong');

// sync functions also allowed to pass them as callback
syncope([5, 5, 5])
    .map(v => v * 2)
    .reduce((a, v) => executor(a - v), 30)
    .then(v => {
        if (v !== 0) throw new Error('second result is wrong');
    });