Hasownproperty Javascript
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![[Lab] Javascript 大小事試試 --- 使用 hasOwnProperty()](https://2.bp.blogspot.com/-z7kQZaXTrbg/U8_kKjQ5OKI/AAAAAAAAC9Q/_GkqUHrBFSc/s1600/%E8%9E%A2%E5%B9%95%E5%BF%AB%E7%85%A7+2014-07-24+%E4%B8%8A%E5%8D%8812.33.30.png)




![[Lab] Javascript 大小事試試 --- 使用 hasOwnProperty()](https://2.bp.blogspot.com/-4T7fYqLcooE/U9AFrt8eZxI/AAAAAAAADBU/BQpvBVGUW5Y/s1600/%E8%9E%A2%E5%B9%95%E5%BF%AB%E7%85%A7+2014-07-24+%E4%B8%8A%E5%8D%882.57.03.png)






























![[객체 순회+hasOwnProperty] for-in, for-of, for-each](https://velog.velcdn.com/images/6_jamong/post/d3dd9c2e-9cc9-4651-afd3-9bb4a6634311/image.png)



![How to check object has Property in JavaScript? [SOLVED] | GoLinuxCloud](https://www.golinuxcloud.com/wp-content/uploads/javascript-hasproperty.jpg)

