Listening method watch

This time I will bring you the monitoring method watch. What are the precautions for using the monitoring method watch? The following is a practical case, let's take a look.

The watch itself is easy to understand. The watch is responsible for associating the data in the view with a certain function

When the data in the Vue view changes, the associated function will be executed

corresponds to an object, the key is the observation expression, and the value is the corresponding callback. The value can also be a method name, or an object containing options. Call $watch() for each key during instantiation;

//使用官方vue-cli脚手架书写

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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