使用 _.sortByOrder lodash 按数字字符串排序

Question

我想排序数字字符串使用sortbyorder的功能lodash。

函数应该在仅字符串字段上正常工作，但在数字字符串的情况下应该按数字顺序排序。

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"
}, ]

我试图排序的字段是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（如果该值是 ）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;
    };
}

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);

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使用 lodash 3.10.1 _.sortByOrder：

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

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);

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