Refactor problem, tring to inject function but fail












0















I'm using react to create a test component, which is used in ContainerA and ContainerB.



test component:



renderTitle(){

let mode = this.modeType[this.state.mode];

switch (mode){
case 'A':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>A</div>
</div>;
break;
case 'B':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>B</div>
</div>;
break;
case 'C':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>C</div>
</div>;
break;
case 'D':
title =
<div>
<div>D</div>
</div>;
break;
}

return(
<div className="d-flex justify-content-around">
{title}
</div>
);
}


And I found that mode A,B,C will only used in ContainerA and mode D will only used in ContainerB.



So I tried to refactor test component into following:



renderTitle(){

let mode = this.modeType[this.state.mode];

let title = this.props.setTitle(mode);

return(
<div className="d-flex justify-content-around">
{title}
</div>
);
}


And change container like following:



ContainerA



export class ContainerA extends Component{

setTitle(mode){

switch (mode){
case 'A':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>A</div>
</div>;
break;
case 'B':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>B</div>
</div>;
break;
case 'C':
title =
<div onClick={this.switchMode.bind(this,'next')}>
<div>C</div>
</div>;
break;
}

return title
}

render(){
return(
<div >
<Test setTitle={this.setTitle.bind(this)}/>
</div>
)
}
}


ContainerB



export class ContainerA extends Component{

setTitle(mode){

let test=
<div>
<div>D</div>
</div>;


return title
}

render(){
return(
<div >
<Test setTitle={this.setTitle.bind(this)}/>
</div>
)
}
}


But switchMode() is inside the test component, so how to set the onClick event handler?










share|improve this question



























    0















    I'm using react to create a test component, which is used in ContainerA and ContainerB.



    test component:



    renderTitle(){

    let mode = this.modeType[this.state.mode];

    switch (mode){
    case 'A':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>A</div>
    </div>;
    break;
    case 'B':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>B</div>
    </div>;
    break;
    case 'C':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>C</div>
    </div>;
    break;
    case 'D':
    title =
    <div>
    <div>D</div>
    </div>;
    break;
    }

    return(
    <div className="d-flex justify-content-around">
    {title}
    </div>
    );
    }


    And I found that mode A,B,C will only used in ContainerA and mode D will only used in ContainerB.



    So I tried to refactor test component into following:



    renderTitle(){

    let mode = this.modeType[this.state.mode];

    let title = this.props.setTitle(mode);

    return(
    <div className="d-flex justify-content-around">
    {title}
    </div>
    );
    }


    And change container like following:



    ContainerA



    export class ContainerA extends Component{

    setTitle(mode){

    switch (mode){
    case 'A':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>A</div>
    </div>;
    break;
    case 'B':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>B</div>
    </div>;
    break;
    case 'C':
    title =
    <div onClick={this.switchMode.bind(this,'next')}>
    <div>C</div>
    </div>;
    break;
    }

    return title
    }

    render(){
    return(
    <div >
    <Test setTitle={this.setTitle.bind(this)}/>
    </div>
    )
    }
    }


    ContainerB



    export class ContainerA extends Component{

    setTitle(mode){

    let test=
    <div>
    <div>D</div>
    </div>;


    return title
    }

    render(){
    return(
    <div >
    <Test setTitle={this.setTitle.bind(this)}/>
    </div>
    )
    }
    }


    But switchMode() is inside the test component, so how to set the onClick event handler?










    share|improve this question

























      0












      0








      0








      I'm using react to create a test component, which is used in ContainerA and ContainerB.



      test component:



      renderTitle(){

      let mode = this.modeType[this.state.mode];

      switch (mode){
      case 'A':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>A</div>
      </div>;
      break;
      case 'B':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>B</div>
      </div>;
      break;
      case 'C':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>C</div>
      </div>;
      break;
      case 'D':
      title =
      <div>
      <div>D</div>
      </div>;
      break;
      }

      return(
      <div className="d-flex justify-content-around">
      {title}
      </div>
      );
      }


      And I found that mode A,B,C will only used in ContainerA and mode D will only used in ContainerB.



      So I tried to refactor test component into following:



      renderTitle(){

      let mode = this.modeType[this.state.mode];

      let title = this.props.setTitle(mode);

      return(
      <div className="d-flex justify-content-around">
      {title}
      </div>
      );
      }


      And change container like following:



      ContainerA



      export class ContainerA extends Component{

      setTitle(mode){

      switch (mode){
      case 'A':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>A</div>
      </div>;
      break;
      case 'B':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>B</div>
      </div>;
      break;
      case 'C':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>C</div>
      </div>;
      break;
      }

      return title
      }

      render(){
      return(
      <div >
      <Test setTitle={this.setTitle.bind(this)}/>
      </div>
      )
      }
      }


      ContainerB



      export class ContainerA extends Component{

      setTitle(mode){

      let test=
      <div>
      <div>D</div>
      </div>;


      return title
      }

      render(){
      return(
      <div >
      <Test setTitle={this.setTitle.bind(this)}/>
      </div>
      )
      }
      }


      But switchMode() is inside the test component, so how to set the onClick event handler?










      share|improve this question














      I'm using react to create a test component, which is used in ContainerA and ContainerB.



      test component:



      renderTitle(){

      let mode = this.modeType[this.state.mode];

      switch (mode){
      case 'A':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>A</div>
      </div>;
      break;
      case 'B':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>B</div>
      </div>;
      break;
      case 'C':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>C</div>
      </div>;
      break;
      case 'D':
      title =
      <div>
      <div>D</div>
      </div>;
      break;
      }

      return(
      <div className="d-flex justify-content-around">
      {title}
      </div>
      );
      }


      And I found that mode A,B,C will only used in ContainerA and mode D will only used in ContainerB.



      So I tried to refactor test component into following:



      renderTitle(){

      let mode = this.modeType[this.state.mode];

      let title = this.props.setTitle(mode);

      return(
      <div className="d-flex justify-content-around">
      {title}
      </div>
      );
      }


      And change container like following:



      ContainerA



      export class ContainerA extends Component{

      setTitle(mode){

      switch (mode){
      case 'A':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>A</div>
      </div>;
      break;
      case 'B':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>B</div>
      </div>;
      break;
      case 'C':
      title =
      <div onClick={this.switchMode.bind(this,'next')}>
      <div>C</div>
      </div>;
      break;
      }

      return title
      }

      render(){
      return(
      <div >
      <Test setTitle={this.setTitle.bind(this)}/>
      </div>
      )
      }
      }


      ContainerB



      export class ContainerA extends Component{

      setTitle(mode){

      let test=
      <div>
      <div>D</div>
      </div>;


      return title
      }

      render(){
      return(
      <div >
      <Test setTitle={this.setTitle.bind(this)}/>
      </div>
      )
      }
      }


      But switchMode() is inside the test component, so how to set the onClick event handler?







      reactjs refactoring






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 3:00









      jimmyjimmy

      2741214




      2741214
























          1 Answer
          1






          active

          oldest

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          0














          A solution I use to call a function in a parent component, from an event that is handled inside a child component, is the following.



          Parent Class



          class Parent extends React.Component {
          actualEvent(data) {
          // do something here
          }
          render() {
          return <Child onClick={this.actualEvent.bind(this)}/>
          }
          }


          Child Class



          class Child extends React.Component {

          onClick(evt) {
          if (this.props.onClick)
          this.props.onClick(/* some data if required */);
          }
          render() {
          return (
          <div onClick={this.onClick.bind(this)}>whatever</div>
          )
          }
          }


          basically, the idea is in the child component where the actual event happens, you call a function that you apply as a property from the parent.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            A solution I use to call a function in a parent component, from an event that is handled inside a child component, is the following.



            Parent Class



            class Parent extends React.Component {
            actualEvent(data) {
            // do something here
            }
            render() {
            return <Child onClick={this.actualEvent.bind(this)}/>
            }
            }


            Child Class



            class Child extends React.Component {

            onClick(evt) {
            if (this.props.onClick)
            this.props.onClick(/* some data if required */);
            }
            render() {
            return (
            <div onClick={this.onClick.bind(this)}>whatever</div>
            )
            }
            }


            basically, the idea is in the child component where the actual event happens, you call a function that you apply as a property from the parent.






            share|improve this answer




























              0














              A solution I use to call a function in a parent component, from an event that is handled inside a child component, is the following.



              Parent Class



              class Parent extends React.Component {
              actualEvent(data) {
              // do something here
              }
              render() {
              return <Child onClick={this.actualEvent.bind(this)}/>
              }
              }


              Child Class



              class Child extends React.Component {

              onClick(evt) {
              if (this.props.onClick)
              this.props.onClick(/* some data if required */);
              }
              render() {
              return (
              <div onClick={this.onClick.bind(this)}>whatever</div>
              )
              }
              }


              basically, the idea is in the child component where the actual event happens, you call a function that you apply as a property from the parent.






              share|improve this answer


























                0












                0








                0







                A solution I use to call a function in a parent component, from an event that is handled inside a child component, is the following.



                Parent Class



                class Parent extends React.Component {
                actualEvent(data) {
                // do something here
                }
                render() {
                return <Child onClick={this.actualEvent.bind(this)}/>
                }
                }


                Child Class



                class Child extends React.Component {

                onClick(evt) {
                if (this.props.onClick)
                this.props.onClick(/* some data if required */);
                }
                render() {
                return (
                <div onClick={this.onClick.bind(this)}>whatever</div>
                )
                }
                }


                basically, the idea is in the child component where the actual event happens, you call a function that you apply as a property from the parent.






                share|improve this answer













                A solution I use to call a function in a parent component, from an event that is handled inside a child component, is the following.



                Parent Class



                class Parent extends React.Component {
                actualEvent(data) {
                // do something here
                }
                render() {
                return <Child onClick={this.actualEvent.bind(this)}/>
                }
                }


                Child Class



                class Child extends React.Component {

                onClick(evt) {
                if (this.props.onClick)
                this.props.onClick(/* some data if required */);
                }
                render() {
                return (
                <div onClick={this.onClick.bind(this)}>whatever</div>
                )
                }
                }


                basically, the idea is in the child component where the actual event happens, you call a function that you apply as a property from the parent.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 22 '18 at 4:16









                demitchell14demitchell14

                83119




                83119
































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