Calling a function in React

Question

I\'m a beginner in React, and I\'m a little confused about calling a function in React.

I saw the following ways and I don\'t know when to use each and which one.

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Answer 1

You can trigger events with this.props.someProps(). Check the following sample.

import React, { Component } from 'react';    

class AddToDo extends Component {
   render() {
      return (
          this.props.handleAddToDo(ev, 'hello')}>
            {this.props.title}
         
      )
   }
}

class Todos extends Component {
   handleAddToDo(ev, someVal) {
      // do something
   }

   render() {
      return (
          this.handleAddToDo(ev, someVal)} />
      )
   }
}

export default Todos;