dsdunn.promisePractice.js

const isOverTen = (num) => {
  return new Promise((resolve, reject) => {
    if (num > 10) {
      resolve(num + ' is greater than 10')
    } else reject(num + ' is less than or equal to ten')
  });
}

const makeCaps = (arr) => {
  return new Promise((resolve, reject) => {
    let newArr = arr.map(item => {
      if (typeof item != 'string') {
        reject('only strings!')
      } else return item.toUpperCase()}
    )
    resolve(newArr)
  })
}

const sort = (arr) => {
  return new Promise((resolve, reject) => {
    resolve(arr.sort());
  })
}