perplexity2021/index.html at main · Soupaul/perplexity2021 · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Bidding Website</title>
  </head>
  <body>
    <h1>Let's Bid!</h1>
    <p id="name"></p>
    <span>$</span><input type="number" placeholder="Amount" id="amt" />
    <button id="bid">Bid</button>
    <br /><br /><br />
    <h4 id="timer">Time left:</h4>
    <h3>Bid History:</h3>
    <ul id="bidders"></ul>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/3.1.1/socket.io.js"></script>
    <script>
      let name;
      let interval;
      let timer = document.getElementById("timer");
      let time = 10;
      let bids;
      let amount = document.getElementById("amt");
      let bidList = document.getElementById("bidders");
      let bidButton = document.getElementById("bid");
      let socket = io.connect("http://localhost:3000");
      socket.on("login", function (content) {
        console.log("login")
        name = content["name"];
        document.getElementById(
          "name"
        ).innerHTML = `<strong>Name: ${name}</strong>`;
        bids = content["bids"];
        bids.forEach((bid) => {
          bidList.innerHTML += `<li>${bid["name"]}  $${bid["amount"]}`;
        });
      });

      socket.on("bid", (content) => {
        if (content["name"] === name)
          bidButton.disabled = true;
        else bidButton.disabled = false;

        bidList.innerHTML += `<li>${content["name"]}  $${content["amount"]}</li>`;
        time = 10;
        clearInterval(interval);
        interval = setInterval(()=>{
          if(time == 0)
            clearInterval(interval);

          timer.innerHTML = `Time left: ${time}s`;
          time--;
        },1000);
      });

      function bid() {
        socket.emit("bid", { name: name, amount: amount.value });
        amount.value = "";
      }

      bidButton.addEventListener("click", bid);
    </script>
  </body>
</html>