只需遵循排序标准列表

即使要封装36个排序标准，这段代码也将始终保持可读和可理解

Nina在这里提出的解决方案当然非常优雅，但它意味着要知道在布尔逻辑中，值为0对应的值为false，并且布尔测试在JavaScript中可以返回除true / false以外的值(这里是数值)，这对于初学者来说总是令人困惑。

还要考虑谁需要维护您的代码。也许会是你:想象一下你自己花了几天的时间在另一个人的代码上，然后有了一个有害的错误……你读了几千行充满技巧的文章，都累坏了

const homes = [ { h_id: '3', city: 'Dallas', state: 'TX', zip: '75201', price: '162500' } , { h_id: '4', city: 'Bevery Hills', state: 'CA', zip: '90210', price: '319250' } , { h_id: '6', city: 'Dallas', state: 'TX', zip: '75000', price: '556699' } , { h_id: '5', city: 'New York', state: 'NY', zip: '00010', price: '962500' } ] const fSort = (a,b) => { let Dx = a.city.localeCompare(b.city) // 1st criteria if (Dx===0) Dx = Number(b.price) - Number(a.price) // 2nd // if (Dx===0) Dx = ... // 3rd // if (Dx===0) Dx = ... // 4th.... return Dx } console.log( homes.sort(fSort))

我一直在寻找类似的东西，最后得到了这个:

首先，我们有一个或多个排序函数，总是返回0、1或-1:

const sortByTitle = (a, b): number => 
  a.title === b.title ? 0 : a.title > b.title ? 1 : -1;

您可以为想要排序的其他属性创建更多函数。

然后我有一个函数将这些排序函数合并为一个:

const createSorter = (...sorters) => (a, b) =>
  sorters.reduce(
    (d, fn) => (d === 0 ? fn(a, b) : d),
    0
  );

这可以用来以一种可读的方式组合上述排序函数:

const sorter = createSorter(sortByTitle, sortByYear)

items.sort(sorter)

当一个排序函数返回0时，将调用下一个排序函数进行进一步排序。

function sortMultiFields(prop){
    return function(a,b){
        for(i=0;i<prop.length;i++)
        {
            var reg = /^\d+$/;
            var x=1;
            var field1=prop[i];
            if(prop[i].indexOf("-")==0)
            {
                field1=prop[i].substr(1,prop[i].length);
                x=-x;
            }

            if(reg.test(a[field1]))
            {
                a[field1]=parseFloat(a[field1]);
                b[field1]=parseFloat(b[field1]);
            }
            if( a[field1] > b[field1])
                return x;
            else if(a[field1] < b[field1])
                return -x;
        }
    }
}

如果你想按降序排序特定字段，如何使用(在字段前放-(减号)号)

homes.sort(sortMultiFields(["city","-price"]));

使用上面的函数，你可以对带有多个字段的json数组进行排序。根本不需要改变函数体

您可以使用lodash或derby函数lodash

它有两个参数字段数组和方向数组('asc'，'desc')

  var homes = [
    {"h_id":"3",
     "city":"Dallas",
     "state":"TX",
     "zip":"75201",
     "price":"162500"},
    {"h_id":"4",
     "city":"Bevery Hills",
     "state":"CA",
     "zip":"90210",
     "price":"319250"},
    {"h_id":"6",
     "city":"Dallas",
     "state":"TX",
     "zip":"75000",
     "price":"556699"},
    {"h_id":"5",
     "city":"New York",
     "state":"NY",
     "zip":"00010",
     "price":"962500"}
    ];

var sorted =. data._.orderBy(data, ['city', 'price'], ['asc','desc'])

下面是一种可扩展的按多个字段排序的方法。

homes.sort(function(left, right) {
    var city_order = left.city.localeCompare(right.city);
    var price_order = parseInt(left.price) - parseInt(right.price);
    return city_order || -price_order;
});

笔记

A function passed to array sort is expected to return negative, zero, positive to indicate less, equal, greater. a.localeCompare(b) is universally supported for strings, and returns -1,0,1 if a<b,a==b,a>b. Subtraction works on numeric fields, because a - b gives -,0,+ if a<b,a==b,a>b. || in the last line gives city priority over price. Negate to reverse order in any field, as in -price_order Add new fields to the or-chain: return city_order || -price_order || date_order; Date compare with subtraction, because date math converts to milliseconds since 1970.var date_order = new Date(left.date) - new Date(right.date); Boolean compare with subtraction, which is guaranteed to turn true and false to 1 and 0 (therefore the subtraction produces -1 or 0 or 1). var goodness_order = Boolean(left.is_good) - Boolean(right.is_good)This is unusual enough that I'd suggest drawing attention with the Boolean constructor, even if they're already boolean.

只需遵循排序标准列表

即使要封装36个排序标准，这段代码也将始终保持可读和可理解

Nina在这里提出的解决方案当然非常优雅，但它意味着要知道在布尔逻辑中，值为0对应的值为false，并且布尔测试在JavaScript中可以返回除true / false以外的值(这里是数值)，这对于初学者来说总是令人困惑。

还要考虑谁需要维护您的代码。也许会是你:想象一下你自己花了几天的时间在另一个人的代码上，然后有了一个有害的错误……你读了几千行充满技巧的文章，都累坏了

const homes = [ { h_id: '3', city: 'Dallas', state: 'TX', zip: '75201', price: '162500' } , { h_id: '4', city: 'Bevery Hills', state: 'CA', zip: '90210', price: '319250' } , { h_id: '6', city: 'Dallas', state: 'TX', zip: '75000', price: '556699' } , { h_id: '5', city: 'New York', state: 'NY', zip: '00010', price: '962500' } ] const fSort = (a,b) => { let Dx = a.city.localeCompare(b.city) // 1st criteria if (Dx===0) Dx = Number(b.price) - Number(a.price) // 2nd // if (Dx===0) Dx = ... // 3rd // if (Dx===0) Dx = ... // 4th.... return Dx } console.log( homes.sort(fSort))