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📜  jquery 检查字典是否有键 - Javascript代码示例

📅  最后修改于: 2022-03-11 15:03:40.192000             🧑  作者: Mango

代码示例2
Use the in operator:

testArray = 'key1' in obj;
Sidenote: What you got there, is actually no jQuery object, but just a plain JavaScript Object