12 o'clock convention

[Jenna-u]

var arr = [
    { name: '小米1', value: 1, type: 2, date: '2017-06-07T08:00:01.589Z' },
    { name: '锤子T1', value: 1, type: 2, date: '2017-06-07T08:10:01.589Z' },
    { name: '小米2', value: 1, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: '小米2', value: 4, type: 4, date: '2017-06-07T08:10:21.189Z' },
    { name: '小米4', value: 1, type: 4, date: '2017-06-07T08:00:01.560Z' },
    { name: '小米4', value: 2, type: 4, date: '2017-06-07T08:10:31.584Z' },
    { name: '小米6', value: 1, type: 3, date: '2017-06-07T08:00:01.589Z' },
    { name: '小米5s', value: 1, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: '锤子T2', value: 1, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: '锤子T1', value: 4, type: 4, date: '2017-06-07T08:06:01.589Z' },
    { name: '魅蓝note5', value: 1, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: '魅蓝note2', value: 5, type: 4, date: '2017-06-02T08:07:01.589Z' },
    { name: '魅蓝note2', value: 6, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: '魅蓝note3', value: 1, type: 4, date: '2017-06-05T08:00:01.589Z' },
    { name: '魅蓝note', value: 1, type: 4, date: '2017-06-07T08:00:01.589Z' },
    { name: 'oppor9', value: 7, type: 4, date: '2017-06-04T08:04:01.588Z' },
    { name: '华为p9', value: 1, type: 4, date: '2017-06-02T08:00:01.577Z' },
    { name: '华为p9', value: 2, type: 4, date: '2017-06-07T08:00:01.110Z' },
    { name: '华为p10', value: 1, type: 1, date: '2017-06-07T08:00:01.534Z' }
];

/**
* type为4的数据过滤出来，
* 按相同的 name + date（按天）合并value（value累加），
* 最后按 value 降序(从大到小)排序.
* 然后每行按照 "小米2,4,2017年06月07日" 的格式, 打印出来.
*/

var filterArr = arr.filter((item) => {
  return item.type === 4
})

var concatArr = filterArr.reduce((last, current) => {
  const saveItem = last.find((item) => {
      return item.name === current.name && item.date.slice(10) === current.date.slice(10)
  })
  if (saveItem) {
      saveItem.value += current.value
  } else {
      last.push(current)
  }
  return last
}, [])

var sortArr = concatArr.sort((a, b) => b.value - a.value)

var log = sortArr.forEach((item) => {
  var date = new Date(item.date)
  var formatDate = `${date.getFullYear()}年${date.getMonth() + 1}月${date.getDate()}日`
  console.log(`${item.name},${item.value}, ${formatDate}`)
})


function hexToRgb(hex) {
  // 将16进制转为RGB形式
  var reg = /^#([0-9a-fA-F]{3}|[0-9a-fA-F]){6}$/
  var rgb = []
  if (reg.test(hex)) {
    var newHex = hex.replace('#', '')
    var resArr = [].slice.call(newHex)
    var arr = []
    if (resArr.length === 6) {
      arr = [resArr[0] + resArr[1], resArr[2] + resArr[3], resArr[4] + resArr[5]]
    } else {
      arr = [resArr[0].repeat(2), resArr[1].repeat(2), resArr[2].repeat(2)]
    }
   
    for (var i=0; i<arr.length; i++) {
       rgb.push(parseInt(arr[i], 16))
    }
  } else {
    console.log('请输入正确的16进制色值')
  }
  
  return rgb.join()
}

hexToRgb('#2b5d2f')