关于字母排序

let ret = []let hot = []for (let key in map) {  let val = map[key]  if (val.match(/[a-zA-Z]/)) {    ret.push(val)  } else if (val.title === HOT_NAME) {    hot.push(val)  }}ret.sort((a, b) => {  return a.charCodeAt(0) - b.charCodeAt(0) })

hot.concat(ret)