React - Passing Props





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















Currently, it's giving me an error saying that isCompleted is undefined.



todo.isCompleted = todo.isCompleted ? false : true;



The above code is what's throwing the error.



The advice Im getting is to pass a todoIndex prop in App.js when you're rendering the Todo component.



Not sure how to go about doing that. Any pointers?





import React, { Component } from 'react';
import './App.css';
import ToDo from './components/ToDo.js';

class App extends Component {
constructor(props) {
super(props);
this.state = {
todos: [
{ description: 'Walk the cat', isCompleted: true },
{ description: 'Throw the dishes away', isCompleted: false },
{ description: 'Buy new dishes', isCompleted: false }],
newTodoDescription: ''
};
}

deleteToDo(deleteToDo) {
console.log(this);
let newToDos = this.state.todos.filter((todo) => {
return todo !== deleteToDo
} )
this.setState({ todos: newToDos });
}

handleChange(e) {
this.setState({ newTodoDescription: e.target.value })
}

handleSubmit(e) {
e.preventDefault();
if (!this.state.newTodoDescription) { return }
const newTodo = { description: this.state.newTodoDescription, isCompleted: false };
this.setState({ todos: [...this.state.todos, newTodo], newTodoDescription: '' });
}

toggleComplete(index) {
const todos = this.state.todos.slice();
const todo = todos[index];
todo.isCompleted = todo.isCompleted ? false : true;
this.setState({ todos: todos });
}


render() {
return (
<div className="App">
<ul>
{ this.state.todos.map( (todo, index) =>
<ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted } toggleComplete={ this.toggleComplete.bind(this) } deleteToDo={() => this.deleteToDo(todo)} />

)}
</ul>
<form onSubmit={ (e) => this.handleSubmit(e) }>
<input type="text" value={ this.state.newTodoDescription } onChange={ (e) => this.handleChange(e) } />
<input type="submit" />
</form>
</div>
);
}
}

export default App;


ToDo.js



import React, { Component } from 'react';

class ToDo extends Component {

toggleComplete = () => {
this.props.toggleComplete(this.props.todoIndex)
}

render() {

return (

<ul>
<input type= "checkbox" checked= { this.props.isCompleted }
onChange= { this.handleToggleClick.bind(this)} />
<span>{ this.props.description }</span>
<button onClick={ this.props.deleteToDo }> X </button>
</ul>

);
}
}
export default ToDo;









share|improve this question































    0















    Currently, it's giving me an error saying that isCompleted is undefined.



    todo.isCompleted = todo.isCompleted ? false : true;



    The above code is what's throwing the error.



    The advice Im getting is to pass a todoIndex prop in App.js when you're rendering the Todo component.



    Not sure how to go about doing that. Any pointers?





    import React, { Component } from 'react';
    import './App.css';
    import ToDo from './components/ToDo.js';

    class App extends Component {
    constructor(props) {
    super(props);
    this.state = {
    todos: [
    { description: 'Walk the cat', isCompleted: true },
    { description: 'Throw the dishes away', isCompleted: false },
    { description: 'Buy new dishes', isCompleted: false }],
    newTodoDescription: ''
    };
    }

    deleteToDo(deleteToDo) {
    console.log(this);
    let newToDos = this.state.todos.filter((todo) => {
    return todo !== deleteToDo
    } )
    this.setState({ todos: newToDos });
    }

    handleChange(e) {
    this.setState({ newTodoDescription: e.target.value })
    }

    handleSubmit(e) {
    e.preventDefault();
    if (!this.state.newTodoDescription) { return }
    const newTodo = { description: this.state.newTodoDescription, isCompleted: false };
    this.setState({ todos: [...this.state.todos, newTodo], newTodoDescription: '' });
    }

    toggleComplete(index) {
    const todos = this.state.todos.slice();
    const todo = todos[index];
    todo.isCompleted = todo.isCompleted ? false : true;
    this.setState({ todos: todos });
    }


    render() {
    return (
    <div className="App">
    <ul>
    { this.state.todos.map( (todo, index) =>
    <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted } toggleComplete={ this.toggleComplete.bind(this) } deleteToDo={() => this.deleteToDo(todo)} />

    )}
    </ul>
    <form onSubmit={ (e) => this.handleSubmit(e) }>
    <input type="text" value={ this.state.newTodoDescription } onChange={ (e) => this.handleChange(e) } />
    <input type="submit" />
    </form>
    </div>
    );
    }
    }

    export default App;


    ToDo.js



    import React, { Component } from 'react';

    class ToDo extends Component {

    toggleComplete = () => {
    this.props.toggleComplete(this.props.todoIndex)
    }

    render() {

    return (

    <ul>
    <input type= "checkbox" checked= { this.props.isCompleted }
    onChange= { this.handleToggleClick.bind(this)} />
    <span>{ this.props.description }</span>
    <button onClick={ this.props.deleteToDo }> X </button>
    </ul>

    );
    }
    }
    export default ToDo;









    share|improve this question



























      0












      0








      0








      Currently, it's giving me an error saying that isCompleted is undefined.



      todo.isCompleted = todo.isCompleted ? false : true;



      The above code is what's throwing the error.



      The advice Im getting is to pass a todoIndex prop in App.js when you're rendering the Todo component.



      Not sure how to go about doing that. Any pointers?





      import React, { Component } from 'react';
      import './App.css';
      import ToDo from './components/ToDo.js';

      class App extends Component {
      constructor(props) {
      super(props);
      this.state = {
      todos: [
      { description: 'Walk the cat', isCompleted: true },
      { description: 'Throw the dishes away', isCompleted: false },
      { description: 'Buy new dishes', isCompleted: false }],
      newTodoDescription: ''
      };
      }

      deleteToDo(deleteToDo) {
      console.log(this);
      let newToDos = this.state.todos.filter((todo) => {
      return todo !== deleteToDo
      } )
      this.setState({ todos: newToDos });
      }

      handleChange(e) {
      this.setState({ newTodoDescription: e.target.value })
      }

      handleSubmit(e) {
      e.preventDefault();
      if (!this.state.newTodoDescription) { return }
      const newTodo = { description: this.state.newTodoDescription, isCompleted: false };
      this.setState({ todos: [...this.state.todos, newTodo], newTodoDescription: '' });
      }

      toggleComplete(index) {
      const todos = this.state.todos.slice();
      const todo = todos[index];
      todo.isCompleted = todo.isCompleted ? false : true;
      this.setState({ todos: todos });
      }


      render() {
      return (
      <div className="App">
      <ul>
      { this.state.todos.map( (todo, index) =>
      <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted } toggleComplete={ this.toggleComplete.bind(this) } deleteToDo={() => this.deleteToDo(todo)} />

      )}
      </ul>
      <form onSubmit={ (e) => this.handleSubmit(e) }>
      <input type="text" value={ this.state.newTodoDescription } onChange={ (e) => this.handleChange(e) } />
      <input type="submit" />
      </form>
      </div>
      );
      }
      }

      export default App;


      ToDo.js



      import React, { Component } from 'react';

      class ToDo extends Component {

      toggleComplete = () => {
      this.props.toggleComplete(this.props.todoIndex)
      }

      render() {

      return (

      <ul>
      <input type= "checkbox" checked= { this.props.isCompleted }
      onChange= { this.handleToggleClick.bind(this)} />
      <span>{ this.props.description }</span>
      <button onClick={ this.props.deleteToDo }> X </button>
      </ul>

      );
      }
      }
      export default ToDo;









      share|improve this question
















      Currently, it's giving me an error saying that isCompleted is undefined.



      todo.isCompleted = todo.isCompleted ? false : true;



      The above code is what's throwing the error.



      The advice Im getting is to pass a todoIndex prop in App.js when you're rendering the Todo component.



      Not sure how to go about doing that. Any pointers?





      import React, { Component } from 'react';
      import './App.css';
      import ToDo from './components/ToDo.js';

      class App extends Component {
      constructor(props) {
      super(props);
      this.state = {
      todos: [
      { description: 'Walk the cat', isCompleted: true },
      { description: 'Throw the dishes away', isCompleted: false },
      { description: 'Buy new dishes', isCompleted: false }],
      newTodoDescription: ''
      };
      }

      deleteToDo(deleteToDo) {
      console.log(this);
      let newToDos = this.state.todos.filter((todo) => {
      return todo !== deleteToDo
      } )
      this.setState({ todos: newToDos });
      }

      handleChange(e) {
      this.setState({ newTodoDescription: e.target.value })
      }

      handleSubmit(e) {
      e.preventDefault();
      if (!this.state.newTodoDescription) { return }
      const newTodo = { description: this.state.newTodoDescription, isCompleted: false };
      this.setState({ todos: [...this.state.todos, newTodo], newTodoDescription: '' });
      }

      toggleComplete(index) {
      const todos = this.state.todos.slice();
      const todo = todos[index];
      todo.isCompleted = todo.isCompleted ? false : true;
      this.setState({ todos: todos });
      }


      render() {
      return (
      <div className="App">
      <ul>
      { this.state.todos.map( (todo, index) =>
      <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted } toggleComplete={ this.toggleComplete.bind(this) } deleteToDo={() => this.deleteToDo(todo)} />

      )}
      </ul>
      <form onSubmit={ (e) => this.handleSubmit(e) }>
      <input type="text" value={ this.state.newTodoDescription } onChange={ (e) => this.handleChange(e) } />
      <input type="submit" />
      </form>
      </div>
      );
      }
      }

      export default App;


      ToDo.js



      import React, { Component } from 'react';

      class ToDo extends Component {

      toggleComplete = () => {
      this.props.toggleComplete(this.props.todoIndex)
      }

      render() {

      return (

      <ul>
      <input type= "checkbox" checked= { this.props.isCompleted }
      onChange= { this.handleToggleClick.bind(this)} />
      <span>{ this.props.description }</span>
      <button onClick={ this.props.deleteToDo }> X </button>
      </ul>

      );
      }
      }
      export default ToDo;






      reactjs react-props






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 25 '18 at 14:41









      Nguyen You

      4,9833831




      4,9833831










      asked Nov 24 '18 at 23:44









      cjl85cjl85

      7510




      7510
























          1 Answer
          1






          active

          oldest

          votes


















          2














          To pass the index to the ToDo component add another prop:



          <ToDo key={index} todoIndex={index} ... />


          and make sure that the component calls toggleComplete with that index prop, i.e.



          class ToDo extends React.Component {
          toggleComplete() {
          this.props.toggleComplete(this.props.todoIndex)
          }
          }


          Also, you're mutating the todo object in your toggleComplete function, instead of:



          todo.isCompleted = todo.isCompleted ? false : true;


          Better do this:



          const todos[index] = {...todo, isCompleted: !todo.isCompleted }


          Or with Object.assign:



          const todos[index] = Object.assign({}, todo, {isCompleted: !isCompleted})


          I think Max Kurtz answer is also correct, the this binding seems to be problematic. Bind the toggleComplete function in the constructor or use arrow functions to make sure this doesn't bite you.






          share|improve this answer


























          • appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

            – cjl85
            Nov 25 '18 at 1:47











          • for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

            – cjl85
            Nov 25 '18 at 1:52











          • You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

            – Stefan
            Nov 25 '18 at 2:06











          • has been added.

            – cjl85
            Nov 25 '18 at 2:10











          • Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

            – Stefan
            Nov 25 '18 at 2:15














          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53463391%2freact-passing-props%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          To pass the index to the ToDo component add another prop:



          <ToDo key={index} todoIndex={index} ... />


          and make sure that the component calls toggleComplete with that index prop, i.e.



          class ToDo extends React.Component {
          toggleComplete() {
          this.props.toggleComplete(this.props.todoIndex)
          }
          }


          Also, you're mutating the todo object in your toggleComplete function, instead of:



          todo.isCompleted = todo.isCompleted ? false : true;


          Better do this:



          const todos[index] = {...todo, isCompleted: !todo.isCompleted }


          Or with Object.assign:



          const todos[index] = Object.assign({}, todo, {isCompleted: !isCompleted})


          I think Max Kurtz answer is also correct, the this binding seems to be problematic. Bind the toggleComplete function in the constructor or use arrow functions to make sure this doesn't bite you.






          share|improve this answer


























          • appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

            – cjl85
            Nov 25 '18 at 1:47











          • for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

            – cjl85
            Nov 25 '18 at 1:52











          • You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

            – Stefan
            Nov 25 '18 at 2:06











          • has been added.

            – cjl85
            Nov 25 '18 at 2:10











          • Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

            – Stefan
            Nov 25 '18 at 2:15


















          2














          To pass the index to the ToDo component add another prop:



          <ToDo key={index} todoIndex={index} ... />


          and make sure that the component calls toggleComplete with that index prop, i.e.



          class ToDo extends React.Component {
          toggleComplete() {
          this.props.toggleComplete(this.props.todoIndex)
          }
          }


          Also, you're mutating the todo object in your toggleComplete function, instead of:



          todo.isCompleted = todo.isCompleted ? false : true;


          Better do this:



          const todos[index] = {...todo, isCompleted: !todo.isCompleted }


          Or with Object.assign:



          const todos[index] = Object.assign({}, todo, {isCompleted: !isCompleted})


          I think Max Kurtz answer is also correct, the this binding seems to be problematic. Bind the toggleComplete function in the constructor or use arrow functions to make sure this doesn't bite you.






          share|improve this answer


























          • appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

            – cjl85
            Nov 25 '18 at 1:47











          • for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

            – cjl85
            Nov 25 '18 at 1:52











          • You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

            – Stefan
            Nov 25 '18 at 2:06











          • has been added.

            – cjl85
            Nov 25 '18 at 2:10











          • Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

            – Stefan
            Nov 25 '18 at 2:15
















          2












          2








          2







          To pass the index to the ToDo component add another prop:



          <ToDo key={index} todoIndex={index} ... />


          and make sure that the component calls toggleComplete with that index prop, i.e.



          class ToDo extends React.Component {
          toggleComplete() {
          this.props.toggleComplete(this.props.todoIndex)
          }
          }


          Also, you're mutating the todo object in your toggleComplete function, instead of:



          todo.isCompleted = todo.isCompleted ? false : true;


          Better do this:



          const todos[index] = {...todo, isCompleted: !todo.isCompleted }


          Or with Object.assign:



          const todos[index] = Object.assign({}, todo, {isCompleted: !isCompleted})


          I think Max Kurtz answer is also correct, the this binding seems to be problematic. Bind the toggleComplete function in the constructor or use arrow functions to make sure this doesn't bite you.






          share|improve this answer















          To pass the index to the ToDo component add another prop:



          <ToDo key={index} todoIndex={index} ... />


          and make sure that the component calls toggleComplete with that index prop, i.e.



          class ToDo extends React.Component {
          toggleComplete() {
          this.props.toggleComplete(this.props.todoIndex)
          }
          }


          Also, you're mutating the todo object in your toggleComplete function, instead of:



          todo.isCompleted = todo.isCompleted ? false : true;


          Better do this:



          const todos[index] = {...todo, isCompleted: !todo.isCompleted }


          Or with Object.assign:



          const todos[index] = Object.assign({}, todo, {isCompleted: !isCompleted})


          I think Max Kurtz answer is also correct, the this binding seems to be problematic. Bind the toggleComplete function in the constructor or use arrow functions to make sure this doesn't bite you.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 25 '18 at 0:18

























          answered Nov 24 '18 at 23:55









          StefanStefan

          60028




          60028













          • appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

            – cjl85
            Nov 25 '18 at 1:47











          • for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

            – cjl85
            Nov 25 '18 at 1:52











          • You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

            – Stefan
            Nov 25 '18 at 2:06











          • has been added.

            – cjl85
            Nov 25 '18 at 2:10











          • Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

            – Stefan
            Nov 25 '18 at 2:15





















          • appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

            – cjl85
            Nov 25 '18 at 1:47











          • for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

            – cjl85
            Nov 25 '18 at 1:52











          • You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

            – Stefan
            Nov 25 '18 at 2:06











          • has been added.

            – cjl85
            Nov 25 '18 at 2:10











          • Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

            – Stefan
            Nov 25 '18 at 2:15



















          appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

          – cjl85
          Nov 25 '18 at 1:47





          appreciate the help. I understand changing the ternary expression, but it gives me an error saying that index is an fatal unexpected token.

          – cjl85
          Nov 25 '18 at 1:47













          for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

          – cjl85
          Nov 25 '18 at 1:52





          for your last comment about this, are you saying that I should avoid using it whenever possible and what would be an example of using an arrow function instead? Would replacing the this binding with arrow functions throughout the program be considered better practice or convention?

          – cjl85
          Nov 25 '18 at 1:52













          You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

          – Stefan
          Nov 25 '18 at 2:06





          You can use the ternary, that's fine. You are not showing the ToDo component implementation, so I can only guess. I assume that it is calling the toggleComplete function. But that function needs the index of the todo and the ToDo component doesn't know that index because you're not passing it as a prop.

          – Stefan
          Nov 25 '18 at 2:06













          has been added.

          – cjl85
          Nov 25 '18 at 2:10





          has been added.

          – cjl85
          Nov 25 '18 at 2:10













          Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

          – Stefan
          Nov 25 '18 at 2:15







          Thanks! So it seems you're already passing this.props.todoIndex in the ToDo component when you call this.props.toggleComplete. But you're not specifying the todoIndex prop when you're rendering those ToDo components in the App component. On this line <ToDo key={ index } description={ todo.description } isCompleted={ todo.isCompleted }... />

          – Stefan
          Nov 25 '18 at 2:15






















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53463391%2freact-passing-props%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          這個網誌中的熱門文章

          Xamarin.form Move up view when keyboard appear

          Post-Redirect-Get with Spring WebFlux and Thymeleaf

          Anylogic : not able to use stopDelay()