js操作json对象添加、删除属性

2020-05-15   阅读(4)  

js 代码

var jsonObj = {};

//添加属性 key1 = val1
jsonObj.key1 = 'val1';
console.log(jsonObj);

//添加属性 key2 = val2
jsonObj['key2'] = 'val2';
console.log(jsonObj);

//添加属性 key1
delete jsonObj['key1'];
console.log(jsonObj);

 

控制台输出

{key1: "val1"}
{key1: "val1", key2: "val2"}
{key2: "val2"}

 

 

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