How react handles ref of stateless components

problem description

recently, in the migration from vue to react, I found that react does not have a better way to handle the insertion of dynamic custom tags, while vue I can implement it by bringing my own component tag

the environmental background of the problems and what methods you have tried

see a similar example on the Internet, which can be achieved through the tag tag

const Tag = this.props.long ? "textarea" : "input";

    const input = <Tag 
              onChange={this.props.onChange}
              className="make-this-pretty"
              id="important-input"
          />;

related codes

/ / Please paste the code text below (do not replace the code with pictures)

render(){
    let list = [];
    if (this.state.DataList.length>0){

        this.state.DataList.forEach((items,i)=>{
            // const templateName = items.layout.replace(/_/g,"");
            // console.log(templateName);
            try {
                const Tag  = this.renderComponents(items.layout); 
                list.push(<Tag key={i} source={items} ref="childo"  />);
                this.state.componentsId.push(items.specialId); // ID
            } catch (error) {
                console.log(items.layout+"");    
            }
      
        })
    }
    console.log(list);
    return(
        <div className="mainbox">
            {list}
        </div>
    )
}

what result do you expect? What is the error message actually seen?

clipboard.png

after the compilation of the result is complete, the console prints: Warning: Stateless function components cannot be given refs. Attempts to access this ref will fail

roughly means that stateless components cannot get refs. How to solve this problem?

Jul.22,2021

is not a stateless component is a stateless function component. Your ref refers to a function function component with no instance


stateless components only define the render life cycle. When you write ref, there is no place to use it. Just delete ref

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