如何检测 Watir 中是否存在元素 [英] How to detect if an element exists in Watir

问题描述

我对 Watir 比较陌生，但找不到关于如何检查元素是否存在的好的文档(示例).当然有 API 规范，但如果我找不到示例，这些规范对我来说意义不大.

I'm relatively new to Watir but can find no good documentation (examples) regarding how to check if an element exists. There are the API specs, of course, but these make precious little sense to me if I don't find an example.

我已经尝试了两种组合，但似乎没有任何效果...如果 browser.image (:src "/media/images/icons/reviewertools/editreview.jpg"). 存在然后...如果 browser.image (:src "/media/images/icons/reviewertools/editreview.jpg"). 存在?然后……

I've tried both combinations but nothing seems to work... if browser.image (:src "/media/images/icons/reviewertools/editreview.jpg").exists then... if browser.image (:src "/media/images/icons/reviewertools/editreview.jpg").exists? then...

如果有人对如何实现这一点有具体的建议，请帮忙！谢谢！

If anyone has a concrete suggestion as per how to implement this, please help! Thanks!

推荐答案

参数之间似乎缺少逗号.

It seems you are missing a comma between parameters.

应该是

if browser.image(:src, "/media/images/icons/reviewertools/editreview.jpg").exists?

您还可以找到此页面将来知道支持哪些属性.

Also you can find this page useful in future to know what attributes are supported.

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