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Today, the editor will share with you the relevant knowledge points about how WeChat Mini Programs realizes data traversal. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Steps to make data traversal

Add data to the index.js.

Read data in index.wxml.

Wx:for-item can specify the variable name of the current element of the array

Wx:for-index can specify the variable name of the current subscript of the array

These two items can also be unspecified. The subscript variable name of the current item of the default array defaults to index, and the variable name of the current item of the array defaults to item.

Similar to block wx:if, you can also use wx:for on labels to render a building block that contains multiple nodes. For example:

{{index}}: {{item}} above is all the content of the article "how to achieve data traversal by WeChat Mini Programs". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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