Accessing nested elements's properties in React-CodePudding

Imagine a situation where a certain component returns:

<Component1>
  <Component2 name="It's my name"/>
</Component1>

now, what I would like to achieve is something like this

<Component1 some_property={getComponent2'sName} //which evaluates to It's my name >
  <Component2 name="It's my name"/>
<Component1>

is this possible? If so, how?

For the context: both of these components are from (different) external packages, I'm not giving a specific example as the code is too messy in here and would only cause an unneeded headache.

CodePudding user response：

You can define a context, using React.createContext(), React.useContext and reducer, you can, you can see an example in this file: context sample

Where I defined 3 actions for the reducer, add to add a component to your set of components, remove to remove a component in a position and clean to clean your set. How can you use this context? First put the context in the code where you want to use it

<YourContextName>
  {Your react code}
</YourContextName>

How to call it? Use the hook useYourContextName() to define your state variables inside the parent component

const { yourContextNameState, setYourContextNameState } = useYourContextName();

Then you can use yourContextNameState to access to your component attributes

<Component1 some_property={yourContextNameState.components[0].Name}>
  <Component2 name={yourContextNameState.components[0].Name}></Component2>
</Component1>

Whenever you want to add a component use:

setYourContextNameState({type: "add", newComponent: {your object}});

Don't worry it's look like a big and hard code, but is super easy, just you can reused the code everywhere you want

CodePudding user response：

The simplest way to do this would be to store the string "It's my name" in a variable in the component that renders Components1 and Components2. Maybe something like this - ask if there is any confusion.

function ParentComponent() {
  const [name, setname] = useState("This is my name");

  return (
    <Component1 some_property={name}>
      <Component2 name={name}></Component2>
    </Component1>
  );
}