JavaScript 排序对象

Question

我有一个 JavaScript 对象(名称、noWords、分数、组)

flower - 1 - 88 - 0
flower - 1 - 99 - 0
flower,spring - 2 - 39 - 1
flower,spring - 2 - 58 - 1
flower,time - 2 - 20 - 2
flower,time - 2 - 53 - 2
spring,time - 2 - 55 - 3
flower,spring,time - 3 - 79 - 4
flower,spring,time - 3 - 121 - 4

我想像这样排序这个对象: 首先重要的是字数——它是制作出来的， 那么如果有更多组具有相同的单词数，则按每个组的较大值进行排序

预期结果

flower - 1 - 88 - 0
flower - 1 - 99 - 0
flower,time - 2 - 20 - 2
flower,time - 2 - 53 - 2
spring,time - 2 - 55 - 3
flower,spring - 2 - 39 - 1
flower,spring - 2 - 58 - 1
flower,spring,time - 3 - 79 - 4
flower,spring,time - 3 - 121 - 4

Answer 1

假设您的对象位于数组中，您可以使用自定义排序方法来比较两个条目。

var myObjects = [ /* assuming this is filled. */ ];

myObjects.sort(function (a, b) {

    // a and b will be two instances of your object from your list

    // possible return values
    var a1st = -1; // negative value means left item should appear first
    var b1st =  1; // positive value means right item should appear first
    var equal = 0; // zero means objects are equal

    // compare your object's property values and determine their order
    if (b.noWords < a.noWords) {
        return b1st;
    }
    else if (a.noWords < b.noWords) {
        return a1st;
    }

    // noWords must be equal on each object
    if (b.group < a.group) {
        return b1st;
    }
    else if (a.group < b.group) {
        return a1st;
    }

    // group must be equal
    // TODO continue checking until you make a decision

    // no difference between objects
    return equal;
});

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