如何获取 RestAPI 响应中收到的总列数？
[英]How do I get total number of columns received in RestAPI response?
问题描述
This Is How My Current Parameter Input Looks Like:
这是我当前参数输入的样子：
value={data?.body?.marketState}
I want to return no.我想退货没有。 of columns in " marketState ". “ marketState ”中的列。
eg.例如。
4
1 个解决方案
解决方案1
1 已采纳 2022-02-11 19:03:07
You can simply access the .length property on the array您可以简单地访问数组上的.length属性
value={data?.body?.marketState?.length}
For more info about .length :有关.length的更多信息：
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length
For more information about JavaScript arrays in general:有关 JavaScript arrays 的更多信息：
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
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