Safe side effects using Fluture

safeSideEffects.js

// test in: https://runkit.com/eckelon/5f22785767e514001bddd5e3
const { env } = require('sanctuary-def');
const S = require('sanctuary');
const {env : flutureEnv} = require('fluture-sanctuary-types');
const { encase, fork } = require('fluture');
const { pipe, I } = S.create ({checkTypes: true, env: S.env.concat (flutureEnv)});

function Logger() {
    this._log = (level) => (message) => {
        const foo = 1;
        foo.split('3'); // what if we force an error
        console.log(`[LOG ${level}] - ${message}`);
    };
    this.info = this._log('INFO');
    this.error = this._log('ERROR');
}

const logger = new Logger();
const logInfo = encase(logger.info);

pipe([
    logInfo
    , fork((reason) => console.error(`Error in logger: ${reason}`))(I)
])('hola')