catch/index.html at master · bhargav4web/catch · GitHub

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<html>
    <head>
        <title>javascript</title>

        <style type="text/css">
            body{
                font-family: sans-serif;
            }
            #shape{
                width:200px;
                height: 200px;
                background-color:red;
                display: none;
                position: relative;

            }

            .bold{
                font-weight: bold;

            }


        </style>
    </head>
    <body>
        <h1>Test your Reactions</h1>
        <p>Click on the boxes as possible as you can</p>
        <p class="bold">your Time: <span id="timeTaken"></span></p>
        <div id="shape"></div>


        <script type="text/javascript">

                    var start=new Date().getTime();

                    function getRandomColor() {
                    var letters = '0123456789ABCDEF';
                    var color = '#';
                    for (var i = 0; i < 6; i++) {
                    color += letters[Math.floor(Math.random() * 16)];
                    }
                     return color;
                   }


                    function makeShapeAppear(){
                        var top=Math.random()*400;
                        var left=Math.random()*400;
                        var width=(Math.random()*200)+100;
                        if(Math.random>0.5){
                            document.getElementById("shape").style.borderRadius="50%";

                        }else{
                            document.getElementById("shape").style.borderRadius="0";
                        }

                        document.getElementById("shape").style.backgroundColor=getRandomColor();
                        document.getElementById("shape").style.width=width+"";
                        document.getElementById("shape").style.height=width+"";
                        document.getElementById("shape").style.left=left+"";
                        document.getElementById("shape").style.top=top+"";
                        document.getElementById("shape").style.display="block";
                        start=new Date().getTime();
                    }

                    function appearAfterDelay(){
                        setTimeout(makeShapeAppear,Math.random()*2000);

                    }

                    appearAfterDelay();


                document.getElementById("shape").onclick=function(){
                    document.getElementById("shape").style.display="none";

                    var end=new Date().getTime();
                    var timeTaken=(end-start)/1000;
                    document.getElementById("timeTaken").innerHTML=timeTaken+"s";

                appearAfterDelay();


                }


        </script>

    </body>
</html>