mardi 1 juin 2021

Patterns in React (wrapper)

Good day. I'm building a tree of components and want to use functions of root component in other components of tree. I throw function reference through all tree. Also I use the object if me need get value from the function in not root componet. Can you help me? Can you show me how to do this as HOC ? If it will be not so hard for you show examples on my code.

import React from 'react';

class Page extends React.Component{

    Answer = {
        value : ''
    }

    doSomething(){

        console.log(this.Answer.value);
        console.log('Ready!');
    }
    
    render(){
        return(
            <div>
                <div>
                    <Body 
                        ParentFunc={()=>this.doSomething()} 
                        ParentParameters={this.Answer}
                    />
                </div>
            </div>
        )
    }
}

export default Page

class Body extends React.Component{
    render(){

        const{
            ParentFunc,
            ParentParameters
        } = this.props
        
        return(
            <div>
                <div>
                    <SomeComponent 
                        ParentFunc={()=>ParentFunc()}
                        ParentParameters={ParentParameters}
                    />
                </div>
            </div>
        )
    }
}

class SomeComponent extends React.Component{

    getAnswer(){
        
        const{
            ParentFunc,
            ParentParameters
        } = this.props

        ParentParameters.value = 'Some text'
        
        ParentFunc()
    }
    
    render(){
        
        return(
            <div onClick={()=>this.getAnswer()}>
                We can?
            </div>
        )
    }
}


Aucun commentaire:

Enregistrer un commentaire