我有一个倒计时脚本：

/** WebSocket Setup */
//var ws = new WebSocket("CONFIG.WEBSOCKET_CONNECTION_PATH");

// jt localhost testing

var time = .25 * 60; // change first number for minutes to countdown
var constantTime = time;
var refreshIntervalId;
var start = false;
var countdown = document.getElementById("countdown");

function connect() {

    const ws = new WebSocket("ws:localhost:8000");

    ws.onopen = function (event) {
        sendGeneralMessage('history_timer_1', 'new_client');
    };

    ws.onmessage = function (event) {
        // parse into json, otherwise stop processing
        try {
            // clearInterval(refreshIntervalId);
            var payload = JSON.parse(event.data);
            console.log("RECEIVED: " + event.data);

            // continue processing if "event" field exists, stop processing otherwise
            if (payload.hasOwnProperty("event")) {
                console.log("has event field");
                // start clock is value is start, stop clock if value is stop, stop otherwise
                if (payload.event == "start" || payload.event == "stop") {
                    if (time != 0)
                        time = constantTime;

                    start = payload.event == "start";
                    console.log("start: " + start);

                    updateCountdown();
                }
                else {
                    console.log("value is not start or stop");
                    clearInterval(refreshIntervalId);
                    countdown.innerHTML = "00:00";
                }
            }
            else {
                console.log("has no event field");
                clearInterval(refreshIntervalId);
                countdown.innerHTML = "00:00";

            }
        } catch(e) {
            console.log("RECEIVED: " + event.data);
        }

    };

    ws.onclose = function(event) {
        console.log("CONNECTION CLOSED");

        setTimeout(function() {
            connect();
        }, 1000);
    };

    ws.onerror = function(event) {
        console.log("ERROR");
    };
}

connect();

function sendGeneralMessage(clientID, event) {
    var message = {client_id:clientID, event: event};
    // console.log(JSON.stringify(message))
    ws.send(JSON.stringify(message));
}

function updateCountdown() {
    if (!start)
        time = 0;

    // clearInterval(refreshIntervalId);

    refreshIntervalId = setInterval(function() {
        let minutes = Math.floor(time / 60);
        let seconds = time % 60;
        
        minutes = minutes < 10 ? '0' + minutes : minutes; //turns single digit minutes to double
        seconds = seconds < 10 ? '0' + seconds : seconds; //turns dingle digit seconds to double

        countdown.innerHTML = `${minutes}:${seconds}`;
        time--;
        if (time < 0) { //stop the setInterval to avoid negative time
            clearInterval(refreshIntervalId);
        }
    }, 1000);
}

字符串
当“值不是开始或停止”或“没有”事件“字段”时，我希望计时器停止倒计时并显示00：00。
现在，当计时器正在倒计时并且上面提到的两个事件之一发生时，计时器显示00：00一瞬间，并从00：00之前停止的地方开始倒计时。
我可以做些什么，让时钟停止倒计时并显示00：00？clearInterval不起作用，是我用错了吗？
编辑：这是我在我的服务器端测试它

ws.on("message", (message) => {
        console.log("received %s", message);
        setTimeout(function () {
                var msg = JSON.stringify({event:"start"});
                ws.send(msg);
                console.log("sent %s", msg);
        }, 3000);
        setTimeout(function () {
            var msg = JSON.stringify("hello");
            ws.send(msg);
            console.log("sent %s", msg);
        }, 8000);
});

型
当发送“hello”时，即 Flink 00：00，然后从开始事件开始继续倒计时。