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leezng avatar leezng commented on May 16, 2024

请提供一个 example,我这边看不到你描述的情况 @mdily

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mdily avatar mdily commented on May 16, 2024

image
这个是后端返回的数据,tran_log下面是不按照key排序的
image
这个是显示的数据,tran_log下面就是按照key排序的

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leezng avatar leezng commented on May 16, 2024

ECMA-262(ECMAScript)第三版中描述,for-in 语句的属性遍历顺序由属性构建的顺序决定。
ECMA-262(ECMAScript)第五版规范中,for-in 语句的遍历的顺序是没有被规定的。

现代新版浏览器基本都按照第五版规范执行,而在该项目中使用 vuev-for 遍历对象,对象本身是无序的,也就无法保证顺序。

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mdily avatar mdily commented on May 16, 2024

ok,了解了,在vue的文档中也找到了相关解释https://cn.vuejs.org/v2/guide/list.html#%E4%B8%80%E4%B8%AA%E5%AF%B9%E8%B1%A1%E7%9A%84-v-for

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mdily avatar mdily commented on May 16, 2024

能否可以修改Object.key()的值来做到对for-in的顺序构建

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leezng avatar leezng commented on May 16, 2024

Object.keys() 的实现原理跟 for-in 是一致的

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mdily avatar mdily commented on May 16, 2024

ok,谢谢,已经改成数组

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