根据数组的一个属性按字母顺序对数组中的对象排序

假设你有一个这样的JavaScript类

var DepartmentFactory = function(data) {
    this.id = data.Id;
    this.name = data.DepartmentName;
    this.active = data.Active;
}

假设您随后创建了该类的许多实例，并将它们存储在一个数组中

var objArray = [];
objArray.push(DepartmentFactory({Id: 1, DepartmentName: 'Marketing', Active: true}));
objArray.push(DepartmentFactory({Id: 2, DepartmentName: 'Sales', Active: true}));
objArray.push(DepartmentFactory({Id: 3, DepartmentName: 'Development', Active: true}));
objArray.push(DepartmentFactory({Id: 4, DepartmentName: 'Accounting', Active: true}));

现在我将拥有一个由DepartmentFactory创建的对象数组。如何使用array.sort()方法按每个对象的DepartmentName属性对这个对象数组进行排序?

array.sort()方法在对字符串数组排序时工作得很好

var myarray=["Bob", "Bully", "Amy"];
myarray.sort(); //Array now becomes ["Amy", "Bob", "Bully"]

但是我如何让它与对象列表一起工作呢?

当前回答

var DepartmentFactory = function(data) {
    this.id = data.Id;
    this.name = data.DepartmentName;
    this.active = data.Active;
}

// use `new DepartmentFactory` as given below. `new` is imporatant

var objArray = [];
objArray.push(new DepartmentFactory({Id: 1, DepartmentName: 'Marketing', Active: true}));
objArray.push(new DepartmentFactory({Id: 2, DepartmentName: 'Sales', Active: true}));
objArray.push(new DepartmentFactory({Id: 3, DepartmentName: 'Development', Active: true}));
objArray.push(new DepartmentFactory({Id: 4, DepartmentName: 'Accounting', Active: true}));

function sortOn(property){
    return function(a, b){
        if(a[property] < b[property]){
            return -1;
        }else if(a[property] > b[property]){
            return 1;
        }else{
            return 0;   
        }
    }
}

//objArray.sort(sortOn("id")); // because `this.id = data.Id;`
objArray.sort(sortOn("name")); // because `this.name = data.DepartmentName;`
console.log(objArray);

演示:http://jsfiddle.net/diode/hdgeH/

2012-01-17 20:04:49

其他回答

ES6代码更短

objArray.sort((a, b) => a.DepartmentName.toLowerCase().localeCompare(b.DepartmentName.toLowerCase()))

2020-08-21 14:42:57

你必须传递一个接受两个参数的函数，比较它们，并返回一个数字，所以假设你想要根据ID对它们排序，你会写…

objArray.sort(function(a,b) {
    return a.id-b.id;
});
// objArray is now sorted by Id

2012-01-17 19:51:49

objArray.sort( (a, b) => a.id.localeCompare(b.id, 'en', {'sensitivity': 'base'}));

这将按字母顺序对它们进行排序，并且不区分大小写。它也非常干净，易于阅读:D

2019-11-20 15:50:20

objArray.sort((a, b) => a.DepartmentName.localeCompare(b.DepartmentName))

2020-04-04 18:56:01

你必须这样做:

objArray.sort(function(a, b) {
    var textA = a.DepartmentName.toUpperCase();
    var textB = b.DepartmentName.toUpperCase();
    return (textA < textB) ? -1 : (textA > textB) ? 1 : 0;
});

注意:改变大小写(改为大写或小写)可以确保不区分大小写。

2012-01-17 19:52:49

根据数组的一个属性按字母顺序对数组中的对象排序

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