[Utility] JS / common function / method Function

1.

  //获取 月日
  getMonth=(time)=>{
    var date = new Date(time)
    var month = date.getMonth()+1<10?'0'+(date.getMonth()+1):(date.getMonth()+1)
    var date  = date.getDate()<10?'0'+date.getDate():date.getDate()
    return month+'-'+date
  }

  //获取时分秒
  getTime=(time)=>{
    var date = new Date(time)
    var hours = date.getHours()<10?'0'+date.getHours():date.getHours()
    var minutes  = date.getMinutes()<10?'0'+date.getMinutes():date.getMinutes()
    var second  = date.getSeconds()<10?'0'+date.getSeconds():date.getSeconds()
    return hours+':'+minutes+':'+second
  }

use: 

const CreatedAt =  '0001-01-01T00:00:00Z'

  <Text style={{fontSize: 11, color: '#999999', marginRight: 6}}> { this.getMonth(item.CreatedAt) }  </Text>