Question

我需要你的帮助，我有一个数组，包含每月（12个月）执行任务的数量，如下所示：

[      
  ["Ilhem", "Ben Salah", 4, 1],     
  ["Ilhem", "Ben Salah", 3, 2],
  ["Ilhem", "Ben Salah", 3, 3],
  ["Ilhem", "Ben Salah", 3, 4],
  ["Sghaier", "Mahmoud", 1, 1]
]

现在我需要一个这样的数组：

[
["Ilhem", "Ben Salah", 4, 1],
["Ilhem", "Ben Salah", 0, 2],
["Ilhem", "Ben Salah", 0, 3],
["Ilhem", "Ben Salah", 0, 4],
["Ilhem", "Ben Salah", 0, 5],
["Ilhem", "Ben Salah", 0, 6],
["Ilhem", "Ben Salah", 0, 7],
["Ilhem", "Ben Salah", 0, 8],
["Ilhem", "Ben Salah", 0, 9],
["Ilhem", "Ben Salah", 0, 10],
["Ilhem", "Ben Salah", 0, 11],
["Ilhem", "Ben Salah", 0, 12],
["Sghaier", "Mahmoud", 7, 1],
["Sghaier", "Mahmoud", 0, 2],
["Sghaier", "Mahmoud", 0, 3],
["Sghaier", "Mahmoud", 0, 4],
["Sghaier", "Mahmoud", 0, 5],
["Sghaier", "Mahmoud", 0, 6],
["Sghaier", "Mahmoud", 0, 7],
["Sghaier", "Mahmoud", 0, 8],
["Sghaier", "Mahmoud", 0, 9],
["Sghaier", "Mahmoud", 0, 10],
["Sghaier", "Mahmoud", 0, 11],
["Sghaier", "Mahmoud", 0, 12]

如何继续请我很困惑。

Answer 1

首先创建一个使用名称作为键的对象和一个子对象，使用月份数作为键来存储该名称的现有月份的数组

然后使用1-12的循环并查看该名称是否存在月份，如果不是

则填写缺失的项目

Crypto.HmacSHA256(regionName, kDate);

const kSecret  = '41575334774a616c725855746e46454d492f4b374d44454e472b62507852666943594558414d504c454b4559',
    dateStamp = '20120215'


function _binaryToHex(array) {
    return array.map(b => ('00' + b.toString(16)).slice(-2)).join('');
}


/**
 * https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/importKey
 */
async function _importKey(keyDataArrayBuffer) {
    return crypto.subtle.importKey(
        'raw',
        keyDataArrayBuffer,
        {'name': 'hmac', 'hash': {'name': 'SHA-256'}},
        false,
        ['sign']);
}

const kDate = _binaryToHex(
    Array.from(
        new Uint8Array(
            await crypto.subtle.sign(
                'HMAC',
                await _importKey(
                    new TextEncoder().encode(kSecret)
                ),
                new TextEncoder().encode(dateStamp)
            )
        )
    )
);
console.log(kDate);
/* Must be
 * '969fbb94feb542b71ede6f87fe4d5fa29c789342b0f407474670f0c2489e0a0d'
 */

function fillMonthHoles(data) {
  var groupByName = {}
  data.forEach(function(arr) {
    var baseArr = arr.slice(0, 2), nameKey = baseArr.join('|');
    this[nameKey] = this[nameKey] || {baseArr : baseArr};   
    this[nameKey][arr[3]] = arr;
  }, groupByName);

  return Object.keys(groupByName).reduce(function(a, key) {
    var baseArr = groupByName[key].baseArr
    for (var i = 1; i < 13; i++) {
      var arr = groupByName[key][i];
      if (!arr) {
        arr = baseArr.slice().concat([0, i]);
      }
      a.push(arr)
    }
    return a
  }, []);

}

var res = fillMonthHoles(data);
// loop over results and log each subarray for demo only
res.forEach(a => console.log(JSON.stringify(a)))

Answer 2

这很有效。

＆＃13;

RunInstances

＆＃13;

统一阵列结构

2 个答案: