Как переделать классовый компонент Реакт в функциональный(стрелочный)

Question

import Particles from "react-tsparticles";

class App extends Component {
  constructor(props) {
    super(props);

    this.particlesInit = this.particlesInit.bind(this);
    this.particlesLoaded = this.particlesLoaded.bind(this);
  }

  particlesInit(main) {
    console.log(main);

    // you can initialize the tsParticles instance (main) here, adding custom shapes or presets
  }

  particlesLoaded(container) {
    console.log(container);
  }

  render() {
    return (
      <Particles
        id="tsparticles"
        init={this.particlesInit}
        loaded={this.particlesLoaded}
        options={{
          background: {
            color: {
              value: "#0d47a1",
            },
          },
          fpsLimit: 60,
          interactivity: {
            detectsOn: "canvas",
            events: {
              onClick: {
                enable: true,
                mode: "push",
              },
              onHover: {
                enable: true,
                mode: "repulse",
              },
              resize: true,
            },
            modes: {
              bubble: {
                distance: 400,
                duration: 2,
                opacity: 0.8,
                size: 40,
              },
              push: {
                quantity: 4,
              },
              repulse: {
                distance: 200,
                duration: 0.4,
              },
            },
          },
          particles: {
            color: {
              value: "#ffffff",
            },
            links: {
              color: "#ffffff",
              distance: 150,
              enable: true,
              opacity: 0.5,
              width: 1,
            },
            collisions: {
              enable: true,
            },
            move: {
              direction: "none",
              enable: true,
              outMode: "bounce",
              random: false,
              speed: 6,
              straight: false,
            },
            number: {
              density: {
                enable: true,
                value_area: 800,
              },
              value: 80,
            },
            opacity: {
              value: 0.5,
            },
            shape: {
              type: "circle",
            },
            size: {
              random: true,
              value: 5,
            },
          },
          detectRetina: true,
        }}
      />
    );
  }
}

Answer 1

Минимум изменений в данном случае. Переделываем класс и методы класса в стрелочные функции. Вместо render метода просто возвращаем то что возвращал render. Так же удалить this. везде. Получатеся примерно так:

import React from "react";
import Particles from "react-tsparticles";

const App = () => {
  const particlesInit = (main) => {
    console.log(main);
  };

  const particlesLoaded = (container) => {
    console.log(container);
  };

  return (
    <Particles
      id="tsparticles"
      init={particlesInit}
      loaded={particlesLoaded}
      options={{
        background: {
          color: {
            value: "#0d47a1",
          },
        },
        fpsLimit: 60,
        interactivity: {
          detectsOn: "canvas",
          events: {
            onClick: {
              enable: true,
              mode: "push",
            },
            onHover: {
              enable: true,
              mode: "repulse",
            },
            resize: true,
          },
          modes: {
            bubble: {
              distance: 400,
              duration: 2,
              opacity: 0.8,
              size: 40,
            },
            push: {
              quantity: 4,
            },
            repulse: {
              distance: 200,
              duration: 0.4,
            },
          },
        },
        particles: {
          color: {
            value: "#ffffff",
          },
          links: {
            color: "#ffffff",
            distance: 150,
            enable: true,
            opacity: 0.5,
            width: 1,
          },
          collisions: {
            enable: true,
          },
          move: {
            direction: "none",
            enable: true,
            outMode: "bounce",
            random: false,
            speed: 6,
            straight: false,
          },
          number: {
            density: {
              enable: true,
              value_area: 800,
            },
            value: 80,
          },
          opacity: {
            value: 0.5,
          },
          shape: {
            type: "circle",
          },
          size: {
            random: true,
            value: 5,
          },
        },
        detectRetina: true,
      }}
    />
  );
};

export default App;

БЛОГ НА HUSL

Как переделать классовый компонент Реакт в функциональный(стрелочный)

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