Mod4 homework

Promises
1.testnum
testnum = (num) => {
  if(num > 10) {
  resolve(`${num} is greater than 10, success!`)
  } else {
  reject(Error(`${num} is less than 10, error!`)
  }
}

2.makeAllCaps
makeAllCaps = (array) => {
  return new Promise((resolve, reject) => {
    if(array.every(value => typeof value === 'string')) {
      const allCaps = array.map(value => value.toUpperCase());
      resolve(allCaps);
    } else {
      reject(Error('The array you passed in contained an element that was not a string'))
    }
  })
}

sortWords = (array) => {
  return new Promise ((resolve, reject) => {
    resolve(array.sort());
  })
}

Writen Questions
1. .then is used to allow developers to manipulate or use the value a promise resolves. .catch is used for error handling
2. Anytime asynchronous js code is being run
3. Node, Q, Bluebird