Useful snippets

simple_snippets.js

// HOF to do an automatic catch over functions that return promises
const handleErrors = fn => (...args) => fn(...args).catch(err => console.error(`Ohh the horror ${err}`))

// A buggy sleep
const riskySleep = (ms) =>
  new Promise((resolve, reject) => {
        if (Math.random() < 0.7) { reject(ms) }
       setTimeout(() => resolve(ms), ms)
});

const safeSleep = handleErrors(riskySleep)