javascript - 在 Javascript 中合并共享键上的多个数组

Question

我想使用共享 key 将多个数组合并为一个大数组。

我尝试过的:

var conditions = [];
if( aa != undefined )
{
    conditions.push( { "query" : { "must" : {  "aa" : "this is aa" } } } );
}

if( bb != undefined )
{
    conditions.push( { "query" : { "must" : {  "bb" : "this is bb" } } } );
}

上面的代码给出:

[
    {
        "query": {
            "must": {
                "aa": "this is aa"
            }
        }
    },
    {
        "query": {
            "must": {
                "bb": "this is bb"
            }
        }
    }
]

但我需要这个:

[
    {
        "query": {
            "must": [
                {
                    "aa": "this is aa"
                },
                {
                    "bb": "this is bb"
                }
            ]
        }
    }
]

我可以使用 PHP 来完成此操作，但我需要使用 native JavaScript 或使用 underscore.js

Answer 1

定义您推送的对象 - 首先将所有内容推送到内部数组 - 然后将对象推送到外部数组:

var conditions = [];
var query = { query: {} };
if( aa != undefined ) {
    if (!query["query"]["must"]) {
        query["query"]["must"] = [];
    }
    //conditions.push( { "query" : { "must" : {  "aa" : "this is aa" } } } );
    query["query"]["must"].push({  "aa" : "this is aa" });
}

if( bb != undefined ) {
    if (!query["query"]["must"]) {
        query["query"]["must"] = [];
    }
    //conditions.push( { "query" : { "must" : {  "bb" : "this is bb" } } } );
    query["query"]["must"].push({  "bb" : "this is bb" });
}

conditions.push(query);