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This article will explain in detail how WeChat Mini Programs gets the ID of binding event elements. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Mini Program list data jump with value, which is generally identified directly by setting the id of item or by setting the key value data-xxxx. As shown in the following figure:

The parsed result is as follows:

We see that it binds a checkSchoolLogin event on the element. When triggering this event, we need to get the id value of the element. How do we get it?

Without rushing to know the method, let's use the following method to see what data it returns when it clicks:

As shown in the figure below, we can see that there are these attributes in e after clicking. We can see that there is an id under currentTarget and an id under dataset. Isn't that the data we need to get? When you get here, you must know how to get the value.

1. The element id can be obtained through e.currentTarget.id.

two。 You can get the inner value of data-id that you set through e.currentTarget.dataset.id.

To solve a problem, we not only need to know it, but also need to know why. Only in this way can we make progress.

This is the end of this article on "how WeChat Mini Programs gets the ID of binding event elements". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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