Convert numbers into Chinese characters and output in js

Foreword:

       The method of converting numbers into Chinese characters output in js can be used directly

Method 1: Support 7 bits, that is, the maximum is 1234567   

Case: this.toChinesNum(10101010) gets "One Thousand One Thousand One Thousand and Ten"

     /**
     * 数字转成汉字
     * @params num === 要转换的数字
     * @return 汉字
     * */
    toChinesNum(num) {
      let changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九']
      let unit = ['', '十', '百', '千', '万']
      num = parseInt(num)
      let getWan = (temp) => {
        let strArr = temp.toString().split('').reverse()
        let newNum = ''
        let newArr = []
        strArr.forEach((item, index) => {
          newArr.unshift(item === '0' ? changeNum[item] : changeNum[item] + unit[index])
        })
        let numArr = []
        newArr.forEach((m, n) => {
          if (m !== '零') numArr.push(n)
        })
        if (newArr.length > 1) {
          newArr.forEach((m, n) => {
            if (newArr[newArr.length - 1] === '零') {
              if (n <= numArr[numArr.length - 1]) {
                newNum += m
              }
            } else {
              newNum += m
            }
          })
        } else {
          newNum = newArr[0]
        }

        return newNum
      }
      let overWan = Math.floor(num / 10000)
      let noWan = num % 10000
      if (noWan.toString().length < 4) {
        noWan = '0' + noWan
      }
      return overWan ? getWan(overWan) + '万' + getWan(noWan) : getWan(num)
    }

Call: let a = this.toChinesNum(1) where the value of a is one

Method 2: Support 9 or more, which is 100 million level. If you need money for the kind of unit, just leave the comment open.

toChineseBig(num) {
      // 将接收到的num转换为字符串
      var strNum = String(num)
      // 定义单位
      // var unit = ['拾', '佰', '仟', '万', '拾', '佰', '仟', '亿', '拾', '佰', '仟']
      var unit = ['十', '百', '千', '万', '十', '百', '千', '亿', '十', '百', '千']
      // 结果中放一个符号，用来解决最后的零去不掉的问题
      var result = ['@']
      // 单位下标
      var unitNo = 0
      // 从后往前遍历接收到的数据，省略结束条件
      for (let i = strNum.length - 1;; i--) {
        // 调用转大写函数，将每一个数字转换成中文大写，一次放入一个到结果数组中
        result.unshift(numToChinese(strNum[i]))
        // 如果不大于0
        if (i <= 0) {
          // 结束循环
          break
        }
        // 放入一个数字，放入一个单位
        result.unshift(unit[unitNo])
        // 单位下标加1
        unitNo++
      }
      // 将结果数组转换成字符串，并使用正则替换一些关键位置，让结果符合语法
      // return result.join('').replace(/(零[仟佰拾]){1,3}/g, '零').replace(/零{2,}/g, '零').replace(/零([万亿])/g, '$1').replace(/亿万/g, '亿').replace(/零*@/g, '')
      return result.join('').replace(/(零[千百十]){1,3}/g, '零').replace(/零{2,}/g, '零').replace(/零([万亿])/g, '$1').replace(/亿万/g, '亿').replace(/零*@/g, '')

      function numToChinese(n) {
        // var chineseBigNum = '零壹贰叁肆伍陆柒捌玖'
        var chineseBigNum = '零一二三四五六七八九'
        return chineseBigNum[n]
      }
    }
  }

Call: let a = this.toChineseBig(112345111111) The value of a here is one thousand one hundred twenty-three thousand one hundred and forty-five thousand one hundred and one hundred and eleven