Pass parent component to child component: props

One 、 Communication between parent components is very common in development , For example, the parent component has some data , Sub components are required for presentation ;

• At this time we can adopt props To complete the communication between components ;

Two 、 What is? Props Well ？

• Props Yes, you can on the component Register some custom attribute;
• Parent component to these attribute assignment , Subcomponent pass attribute Get the corresponding value from the name of ;

3、 ... and 、Props There are two common uses ：

• Mode one ： Array of strings , The string in the array is attribute The name of ;
• Mode two ： object type , The object type can be specified in attribute Name at the same time , Specify the type it passes , Is it necessary 、 Default value and so on ;

Mode one ： Dynamic data should be colon

  Mode two ：