使用两个键的Javascript排序数组

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您好我正在开发一个聊天应用程序，我想对新消息进行排序，并根据时间保留历史顺序。使用两个键的Javascript排序数组

例如，我有聊天消息在这样

[{"user":"a", "msg":"Hi ", "msg_count":1, "unix_time":"1474476800000"} 
{"user":"b", "msg":"Hi ", "msg_count":1, "unix_time":"1478776800000"} 
{"user":"c", "msg":"Hi ", "msg_count":5, "unix_time":"1479276800000"} 
{"user":"d", "msg":"Hi ", "msg_count":1, "unix_time":"1478416800000"} 
{"user":"e", "msg":"Hi ", "msg_count":3, "unix_time":"1478476800000"}]

数组如何我也使用“MSG_COUNT”键，所有更大的价值应该来在上面进行排序，但剩下的对象应用“unix_time”键排序。

来源

2016-11-08 Tuna

你可以使用data.sort（） – Vikrant

可能是你正在寻找这个http://stackoverflow.com/questions/6913512/how-to-sort-an-array-对象由多个字段 – Nitheesh

@Cerbrus你甚至读过我的问题吗？我有一个数字和一个字符串属性来排序！所有这些链接都没有！ – Tuna

使用Array#sort方法与自定义比较功能。

var data=[{"user":"a", "msg":"Hi ", "msg_count":1, "unix_time":"1474476800000"}, 
 
{"user":"b", "msg":"Hi ", "msg_count":1, "unix_time":"1478776800000"}, 
 
{"user":"c", "msg":"Hi ", "msg_count":5, "unix_time":"1479276800000"}, 
 
{"user":"d", "msg":"Hi ", "msg_count":1, "unix_time":"1478416800000"}, 
 
{"user":"e", "msg":"Hi ", "msg_count":3, "unix_time":"1478476800000"}]; 
 

 

 
data.sort(function(a, b) { 
 
    // return the difference of `msg_count` property to sort based on them 
 
    // if they are equal then sort based on unix_time prop 
 
    return b.msg_count - a.msg_count || 
 
    b.unix_time - a.unix_time; 
 
}) 
 

 
console.log(data)

来源

2016-11-08 10:51:20

不错的一个，你可以添加unix_time键的排序吗 – Tuna

@Tuna：他已经在那里实现了'unix_time'排序。 – Cerbrus

@Tuna：以何种顺序 –

使用两个键的Javascript排序数组

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