js向object对象添加属性和向数组中追加元素

落日映苍穹つ 2022-09-10 07:27 440阅读 0赞

### js向object对象添加属性和向数组中追加元素 ###

*   *  json对象添加属性
     *  json数组添加元素
     *  对象内部数组中追加元素

## json对象添加属性 ##

var jsonObj={ 
          'param1':11,
          'param2' :22
    };
    jsonObj. param3='33';

## json数组添加元素 ##

var jsonObj={ };// 定义一个json对象
    jsonObj.array1=["2","4"];// 增加一个新属性，此属性是数组jsonObj.array1[jsonObj.array1.length]='6';// 数组arr1追加一个元素
    jsonObj.array2=["1","3","5"];//json对象中添加元素console.log(jsonObj);

## 对象内部数组中追加元素 ##

<!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
        <meta name="format-detection" content="telephone=no"/>
        <title>对象合并</title>
    </head>
    <body>
    <script> var follow_list_old = { "09/06": [ { "follow_id": "298", "follow_time": "14:20", "follow_content": "已沟通,老客户,未接通电话,再次购买,无意向,vip客户,抽奖客户,新客户", "operator": "Gjx" }, { "follow_id": "297", "follow_time": "14:18", "follow_content": "未接通电话", "operator": "Gjx" }, { "follow_id": "296", "follow_time": "14:18", "follow_content": "老客户,抽奖客户", "operator": "Gjx" } ], "08/28": [ { "follow_id": "111", "follow_time": "13:45", "follow_content": "无意向,抽奖客户,已沟通", "operator": "Gjx" } ], "08/27": [ { "follow_id": "107", "follow_time": "17:44", "follow_content": "抽奖客户,新客户", "operator": "Gjx" }, { "follow_id": "104", "follow_time": "15:38", "follow_content": "再次购买,已沟通", "operator": "Gjx" }, { "follow_id": "103", "follow_time": "15:38", "follow_content": "抽奖客户,已沟通", "operator": "Gjx" }, { "follow_id": "102", "follow_time": "14:56", "follow_content": "再次购买,已沟通", "operator": "Gjx" }, { "follow_id": "101", "follow_time": "14:56", "follow_content": "已沟通", "operator": "Gjx" }, { "follow_id": "100", "follow_time": "14:55", "follow_content": "已沟通", "operator": "Gjx" } ] }; console.log('follow_list_old==', follow_list_old); var follow_list_new = { "08/27": [ { "follow_id": "99", "follow_time": "14:55", "follow_content": "ddss", "operator": "Gjx" }, { "follow_id": "98", "follow_time": "14:55", "follow_content": "再次购买,已沟通,老客户", "operator": "Gjx" }, { "follow_id": "97", "follow_time": "14:55", "follow_content": "再次购买,已沟通", "operator": "Gjx" }, { "follow_id": "96", "follow_time": "14:53", "follow_content": "再次购买,已沟通,已沟通,再次购买", "operator": "Gjx" }, { "follow_id": "95", "follow_time": "14:52", "follow_content": "已沟通,抽奖客户", "operator": "Gjx" }, { "follow_id": "94", "follow_time": "14:52", "follow_content": "已沟通,已沟通", "operator": "Gjx" }, { "follow_id": "93", "follow_time": "14:51", "follow_content": "再次购买", "operator": "Gjx" }, { "follow_id": "92", "follow_time": "14:48", "follow_content": "再次购买,已沟通,未接通电话", "operator": "Gjx" }, { "follow_id": "91", "follow_time": "14:48", "follow_content": "再次购买,已沟通,抽奖客户,再次购买,未接通电话", "operator": "Gjx" }, { "follow_id": "90", "follow_time": "14:48", "follow_content": "再次购买,已沟通,老客户,未接通电话", "operator": "Gjx" } ] }; console.log('follow_list_new==', follow_list_new); for (var key in follow_list_new) { if (follow_list_new.hasOwnProperty(key) === true) { //此处hasOwnProperty是判断自有属性，使用 for in 循环遍历对象的属性时，原型链上的所有属性都将被访问会避免原型对象扩展带来的干扰 for (var keya in follow_list_new[key]) { follow_list_old[key][follow_list_old[key].length] = follow_list_new[key][keya]; } } } console.log('follow_list_old===', follow_list_old); </script>
    </body>
    </html>

可以看到follow\_list\_new有10条数据  
![在这里插入图片描述][d65c500eb56c4a76bb45ed18c580f158.png]将follow\_list\_new对象 08/27 数组中的元素循环追加到follow\_list\_old对象中 08/27的数组内  
![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5b6K5b-G57696I-y_size_20_color_FFFFFF_t_70_g_se_x_16]

[d65c500eb56c4a76bb45ed18c580f158.png]: /images/20220829/7985dd5955ba4ca1bab8407bd0d92562.png
[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5b6K5b-G57696I-y_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220829/030ec6ad3b67477e8cb0291759b5f242.png