JSFiddle - React, Tailwind, and code Playground

by asyncanup

HTML

<div id="root"></div>

CSS

body {
  font: 14px "Century Gothic", Futura, sans-serif;
  margin: 20px;
}

ol, ul {
  padding-left: 30px;
}

.board-row:after {
  clear: both;
  content: "";
  display: table;
}

.status {
  margin-bottom: 10px;
}

.square {
  background: #fff;
  border: 1px solid #999;
  float: left;
  font-size: 24px;
  font-weight: bold;
  line-height: 34px;
  height: 34px;
  margin-right: -1px;
  margin-top: -1px;
  padding: 0;
  text-align: center;
  width: 34px;
}

.square:focus {
  outline: none;
}

.kbd-navigation .square:focus {
  background: #ddd;
}

.game {
  display: flex;
  flex-direction: row;
}

.game-info {
  margin-left: 20px;
}

Babel + JSX

// React
A="appendChild",g=(e=>(e=e||[],e.map?e.flatMap(g):[e])),React={Component:function(e){this.props=e},[C="createElement"]:(t,s,...a)=>t.bind?new t(s):(e=document[C](t),(()=>{for(n in s)e[n]=s[n]})(),g(a).map(t=>e[A](t.props?t.render():t.part?t:new Text(t))),e)}

// Additional ReactDOM + setState plugin
ReactDOM={render:(e,t)=>(e.h=t,t[A](e.render()))},React.Component.prototype.setState=function(e){this.state={...this.state,...e},!this.h&&console.log("setState",this,this.h),this.h.innerHTML="",ReactDOM.render(this,this.h)};

// --------- Component definition --------- //
// Example taken from https://reactjs.org/tutorial/tutorial.html

function Square(props) {
  return (
    <button className="square" onclick={props.onClick}>
      {props.value}
    </button>
  );
}

class Board extends React.Component {
  renderSquare(i) {
    return (
      <Square
        value={this.props.squares[i]}
        onClick={() => this.props.onClick(i)}
      />
    );
  }

  render() {
    return (
      <div>
        <div className="board-row">
          {this.renderSquare(0)}
          {this.renderSquare(1)}
          {this.renderSquare(2)}
        </div>
        <div className="board-row">
          {this.renderSquare(3)}
          {this.renderSquare(4)}
          {this.renderSquare(5)}
        </div>
        <div className="board-row">
          {this.renderSquare(6)}
          {this.renderSquare(7)}
          {this.renderSquare(8)}
        </div>
      </div>
    );
  }
}

class Game extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      history: [
        {
          squares: Array(9).fill(null)
        }
      ],
      stepNumber: 0,
      xIsNext: true
    };
  }

  handleClick(i) {
    console.log('handleClick', i);
    const history = this.state.history.slice(0, this.state.stepNumber + 1);
    const current = history[history.length - 1];
    const squares = current.squares.slice();
    if (calculateWinner(squares) || squares[i]) {
...