Code Snippet for https://blog.nextzy.me/เมื่อเขียน-react-แต่ดันไม่รู้เรื่อง-method-binding-ใน-react-component-6a498f3f646f

UserCard.jsx

import React, { Component } from 'react'
...

class UserCard extends Component {
  constructor(props) {
    super(props);
    this.state = {
      name: 'Akexorcist'
    }
  }
  
  onButtonClick() {
    console.log('Name : ' + this.state.name)
  }

  render() {
    return (
      <div>
        ...
        <button onClick={this.onButtonClick}>Confirm</button>
      </div>
    )
  }
}

export default UserCard