JSFiddle - React, Tailwind, and code Playground

by vaibhav saxena

HTML

<canvas id="canvas" width="400" height="400"
style="background-color:#333">

JavaScript

var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var radius = canvas.height / 2;
ctx.translate(radius, radius);
radius = radius * 0.90
setInterval(drawClock, 1000);

function drawClock() {
  drawFace(ctx, radius);
  drawNumbers(ctx, radius);
  drawTime(ctx, radius);
}

function drawFace(ctx, radius) {
  var grad;
  ctx.beginPath();
  ctx.arc(0, 0, radius, 0, 2*Math.PI);
  ctx.fillStyle = 'white';
  ctx.fill();
  grad = ctx.createRadialGradient(0,0,radius*0.95, 0,0,radius*1.05);
  grad.addColorStop(0, 'green');
  grad.addColorStop(0.5, 'green');
  grad.addColorStop(1, 'green');
  ctx.strokeStyle = grad;
  ctx.lineWidth = radius*0.1;
  ctx.stroke();
  ctx.beginPath();
  ctx.arc(0, 0, radius*0.1, 0, 2*Math.PI);
  ctx.fillStyle = '#333';
  ctx.fill();
}

function drawNumbers(ctx, radius) {
  var ang;
  var num;
  ctx.font = radius*0.15 + "px arial";
  ctx.textBaseline="middle";
  ctx.textAlign="center";
  for(num = 1; num < 13; num++){
    ang = num * Math.PI / 6;
    ctx.rotate(ang);
    ctx.translate(0, -radius*0.85);
    ctx.rotate(-ang);
    ctx.fillText('.', 0, 0);
    ctx.rotate(ang);
    ctx.translate(0, radius*0.85);
    ctx.rotate(-ang);
  }
}

function drawTime(ctx, radius){
    var now = new Date();
    var hour = now.getHours();
    var minute = now.getMinutes();
    var second = now.getSeconds();
    var millisecond = now.getMilliseconds();
    //hour
    //hour=hour%12;
    //hour=(hour*Math.PI/6)+
    //(minute*Math.PI/(6*60))+
    //(second*Math.PI/(360*60));
   // drawHand(ctx, hour, radius*0.5, radius*0.07);
    //minute
    
   // minute=(minute*Math.PI/30)+(second*Math.PI/(30*60));
  //  drawHand(ctx, minute, radius*0.8, radius*0.07);
    // second
    
    second=(second*Math.PI/30);
    drawHand(ctx, second, radius*0.9, radius*0.2);
		drawHand(ctx, millisecond*980, radius*0.9, radius*0.2);    

}

function drawHand(ctx, pos, length, width) {
    ctx.beginPath();
    ctx.lineWidth = width;
    ctx.lineCap =...