javascript - 如何根据确定的属性值对 JavaScript 中的对象数组进行排序？

Question

所以我有这个通知对象数组，必须按严重性降序排序，即 Error > Warning > Information。

示例:

var notificationArray = [ {
    code : "103",
    severity : "Error"
}, {
    code : "104",
    severity : "Information"
}, {
    code : "109",
    severity : "Error"
}, {
    code : "403",
    severity : "Warning"
}, {
    code : "510",
    severity : "Information"
}, {
    code : "114",
    severity : "Warning"
}, {
    code : "144",
    severity : "Error"
}, {
    code : "413",
    severity : "Warning"
} ];

确保该数组始终根据严重性排序的最简单方法是什么？

附注还有其他线程对对象数组进行排序，但我最发现的是 unicode 排序，而不是通过与固定值进行比较来排序。如果我发布了重复的问题，请道歉。

Answer 1

您可以使用订单对象对严重性的优先级进行排序。

var notificationArray = [{ code: "103", severity: "Error" }, { code: "104", severity: "Information" }, { code: "109", severity: "Error" }, { code: "403", severity: "Warning" }, { code: "510", severity: "Information" }, { code: "114", severity: "Warning" }, { code: "144", severity: "Error" }, { code: "413", severity: "Warning" }, { code: "131", severity: "Error"}],
    order = { Error: 1, Warning: 2, Information: 3 };

notificationArray.sort(function (a, b) {
    return order[a.severity] - order[b.severity];
});

console.log(notificationArray);

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