Detailed explanation of how vuejs dynamic components pass data to subcomponents

The props used when defining sub-components can support parent components to pass data to sub-components. These defined props can be bound to the tags of sub-components, but if you are using a dynamic component, this When there is no explicit sub-component tag, to pass data to the sub-component you need to bind it in

<div class="app" id="deviceready">
<component :is="currentView" :user_name.sync="user_name" :DOB.sync="DOB"></component>
</div>

The role of the component is independent

The function of the component is independent. If you want to get data from the component, you need to pass it layer by layer. That is to say, the child component can only get the data from the direct parent component. If it is the data of the root component, Then the parent component will continue to expose pops to bind data from the root component.

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