Question

我正在尝试使用sortbyorder lodash函数对数字字符串进行排序。

函数应该在仅字符串字段上正常工作，但如果是数字字符串，则应按数字顺序排序。

示例数组对象如下：

[{ "timeInProcessing": "20 min", "timeInManual": "8 min", "taskID": "653452", "reasonType": "Customer Request", "assignedStatus": "Robinson, Edwin", "virtualMachine": "[machine name]", "lastAction": "1st processing fail", "region": "EU", "project": "Demo Chue STAGE Media Extracts 04", "fileName": "Depósito à Prazo BC - BI de Abril a 08 JUN 2016.xlsx", "index": "1.0", "fileRoom": "NRP TriPost", "fileType": "xlsx", "fileSize": "22.49 MB", "processedBy": "n/a", "uploadedBy": "Johnson III, Chadwick", "node": "SPWD6PDGDS001" }, { "timeInProcessing": "15 min", "timeInManual": "7 min", "taskID": "765435", "reasonType": "Multiple Attachments", "assignedStatus": "Robinson, Edwin", "virtualMachine": "[machine name]", "lastAction": "2nd processing fail", "region": "EU", "project": "Blue Thunder", "fileName": "lorem_ipsum_dolor.msg", "index": "1.1", "fileRoom": "North America", "fileType": "msg", "fileSize": "0.51 MB", "processedBy": "Chandwik, Eric", "uploadedBy": "Williamson, Lucinda", "node": "SPWD6PDGDS002" }, { "timeInProcessing": "10 min", "timeInManual": "n/a", "taskID": "765436", "reasonType": "Customer Request", "assignedStatus": "Unassigned", "virtualMachine": "n/a", "lastAction": "[TBD]", "region": "AP", "project": "Hercules", "fileName": "lorem_ipsum_dolor.msg", "index": "1.1.1", "fileRoom": "STAGING-Enterprise HR", "fileType": "msg", "fileSize": "0.01 MB", "processedBy": "Holland, Roberta", "uploadedBy": "Trisko, Dora", "node": "SPWD6PDGDS005" }, ]

我要对其进行排序的字段为timeInProcessing。

Answer 1

您可以使用排序回调。它接受一个键并返回数值或原始值，如果值为NaN。

function byKey(key) {
    return function (o) {
        var v = parseInt(o[key], 10);
        return isNaN(v) ? o[key] : v;
    };
}

使用lodash 4.17.2 _.sortBy：

function byKey(key) {
    return function (o) {
        var v = parseInt(o[key], 10);
        return isNaN(v) ? o[key] : v;
    };
}

var data = [{ timeInProcessing: "20 min", timeInManual: "8 min", taskID: "653452" }, { timeInProcessing: "15 min", timeInManual: "7 min", taskID: "765435" }, { timeInProcessing: "10 min", timeInManual: "n/a", "taskID": "765436" }, { timeInProcessing: "min", timeInManual: "n/a", "taskID": "7654XX" }, { timeInProcessing: "abc", timeInManual: "n/a", "taskID": "7654YY" }],
    sorted = _.sortBy(data, byKey('timeInProcessing'));

console.log(sorted);
_.reverse(sorted);
console.log(sorted);

.as-console-wrapper { max-height: 100% !important; top: 0; }

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.15.0/lodash.min.js"></script>

使用lodash 3.10.1 _.sortByOrder：

function byKey(key) {
    return function (o) {
        var v = parseInt(o[key], 10);
        return isNaN(v) ? o[key] : v;
    };
}

var data = [{ timeInProcessing: "20 min", timeInManual: "8 min", taskID: "653452" }, { timeInProcessing: "15 min", timeInManual: "7 min", taskID: "765435" }, { timeInProcessing: "10 min", timeInManual: "n/a", "taskID": "765436" }, { timeInProcessing: "min", timeInManual: "n/a", "taskID": "7654XX" }, { timeInProcessing: "abc", timeInManual: "n/a", "taskID": "7654YY" }],
    sorted = _.sortByOrder(data, byKey('timeInProcessing'), ['asc']);

console.log(sorted);

.as-console-wrapper { max-height: 100% !important; top: 0; }

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.min.js"></script>

Answer 2

我在您的对象sortKey中添加了一个属性。这是为timeInProcessing保存数值。这将允许您使用数值进行排序。

同样在以下示例中，我首先使用uploadedBy进行排序，然后使用解析的值来描述对多于一个键的排序

var data=[{timeInProcessing:"20 min",timeInManual:"8 min",taskID:"653452",reasonType:"Customer Request",assignedStatus:"Robinson, Edwin",virtualMachine:"[machine name]",lastAction:"1st processing fail",region:"EU",project:"Demo Chue STAGE Media Extracts 04",fileName:"Depósito à Prazo BC - BI de Abril a 08 JUN 2016.xlsx",index:"1.0",fileRoom:"NRP TriPost",fileType:"xlsx",fileSize:"22.49 MB",processedBy:"n/a",uploadedBy:"Johnson III, Chadwick",node:"SPWD6PDGDS001"},{timeInProcessing:"15 min",timeInManual:"7 min",taskID:"765435",reasonType:"Multiple Attachments",assignedStatus:"Robinson, Edwin",virtualMachine:"[machine name]",lastAction:"2nd processing fail",region:"EU",project:"Blue Thunder",fileName:"lorem_ipsum_dolor.msg",index:"1.1",fileRoom:"North America",fileType:"msg",fileSize:"0.51 MB",processedBy:"Chandwik, Eric",uploadedBy:"Williamson, Lucinda",node:"SPWD6PDGDS002"},{timeInProcessing:"10 min",timeInManual:"n/a",taskID:"765436",reasonType:"Customer Request",assignedStatus:"Unassigned",virtualMachine:"n/a",lastAction:"[TBD]",region:"AP",project:"Hercules",fileName:"lorem_ipsum_dolor.msg",index:"1.1.1",fileRoom:"STAGING-Enterprise HR",fileType:"msg",fileSize:"0.01 MB",processedBy:"Holland, Roberta",uploadedBy:"Trisko, Dora",node:"SPWD6PDGDS005"}];

var sortedOrder = _.sortByOrder(_.map(data, function(o) {
  o["timeInProcessing_num"] = parseInt(o.timeInProcessing, 10);
  return o;
}), ["uploadedBy", "timeInProcessing_num"])
console.log(sortedOrder)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.0/lodash.min.js"></script>

使用_.sortByOrder lodash按数字字符串排序

2 个答案: