javascript 获取字母数组javascript ES6

Posted 2021-05-03

const getAlphabet = () => {
  const startIndex = 'a'.charCodeAt(0)
  const lastIndex = 'z'.charCodeAt(0)
  const n = lastIndex - startIndex + 1
  return Array(n)
    .fill()
    .map( (_item, i) => String.fromCharCode(startIndex + i))
}