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How do I get my timer to stop, when my 10th and last question has been answered?

The goal I am trying to achieve is to get my timer to stop when all the questions of my quiz has been answered. I have 10 total questions. I have been able to get the timer to start. But getting ot to stop on the click of submit on the 10th question is something I can't figure out.
Let me know if you know what I am doing
StackOverflow said my code was too long... I added my code to codepen. I also included my JS on here.
// variables
var score = 0; //set score to 0
var total = 10; //total nmumber of questions
var point = 1; //points per correct answer
var highest = total * point;
//init
console.log('script js loaded')
function init() {
//set correct answers
sessionStorage.setItem('a1', "b");
sessionStorage.setItem('a2', "a");
sessionStorage.setItem('a3', "c");
sessionStorage.setItem('a4', "d");
sessionStorage.setItem('a5', "b");
sessionStorage.setItem('a6', "d");
sessionStorage.setItem('a7', "b");
sessionStorage.setItem('a8', "b");
sessionStorage.setItem('a9', "d");
sessionStorage.setItem('a10', "d");
}
// timer
// var i = 1;
// $("#startButton").click(function (e) {
// setInterval(function () {
// $("#stopWatch").html(i);
// i++;
// }, 1000);
// });
// $("#resetButton").click(function (e) {
// i = 0;
// });
//hide all questions to start
$(document).ready(function() {
$('.questionForm').hide();
//show question 1
$('#question1').show();
$('.questionForm #submit').click(function() {
//get data attribute
current = $(this).parents('form:first').data('question');
next = $(this).parents('form:first').data('question') + 1;
//hide all questions
$('.questionForm').hide();
//show next question in a cool way
$('#question' + next + '').fadeIn(400);
process('' + current + '');
return false;
});
});
//process answer function
function process(n) {
// get input value
var submitted = $('input[name=question' + n + ']:checked').val();
if (submitted == sessionStorage.getItem('a' + n + '')) {
score++;
}
if (n == total) {
$('#results').html('<h3>Your score is: ' + score + ' out of ' + highest + '!</h3> <button onclick="myScore()">Add Your Name To Scoreboard!</a>')
}
return false;
}
window.yourPoints = function() {
return n;
}
function myScore() {
var person = prompt("Please enter your name", "My First Name");
if (person != null) {
document.getElementById("myScore").innerHTML =
person + " " + score
}
}
// function showTime() {
// var d = new Date();
// document.getElementById("clock").innerHTML = d.toLocaleTimeString();
// }
// setInterval(showTime, 1000);
var x;
var startstop = 0;
window.onload = function startStop() { /* Toggle StartStop */
startstop = startstop + 1;
if (startstop === 1) {
start();
document.getElementById("start").innerHTML = "Stop";
} else if (startstop === 2) {
document.getElementById("start").innerHTML = "Start";
startstop = 0;
stop();
}
}
function start() {
x = setInterval(timer, 10);
} /* Start */
function stop() {
clearInterval(x);
} /* Stop */
var milisec = 0;
var sec = 0; /* holds incrementing value */
var min = 0;
var hour = 0;
/* Contains and outputs returned value of function checkTime */
var miliSecOut = 0;
var secOut = 0;
var minOut = 0;
var hourOut = 0;
/* Output variable End */
function timer() {
/* Main Timer */
miliSecOut = checkTime(milisec);
secOut = checkTime(sec);
minOut = checkTime(min);
hourOut = checkTime(hour);
milisec = ++milisec;
if (milisec === 100) {
milisec = 0;
sec = ++sec;
}
if (sec == 60) {
min = ++min;
sec = 0;
}
if (min == 60) {
min = 0;
hour = ++hour;
}
document.getElementById("milisec").innerHTML = miliSecOut;
document.getElementById("sec").innerHTML = secOut;
document.getElementById("min").innerHTML = minOut;
document.getElementById("hour").innerHTML = hourOut;
}
/* Adds 0 when value is <10 */
function checkTime(i) {
if (i < 10) {
i = "0" + i;
}
return i;
}
function reset() {
/*Reset*/
milisec = 0;
sec = 0;
min = 0
hour = 0;
document.getElementById("milisec").innerHTML = "00";
document.getElementById("sec").innerHTML = "00";
document.getElementById("min").innerHTML = "00";
document.getElementById("hour").innerHTML = "00";
}
//adding an event listener
window.addEventListener('load', init, false);
https://codepen.io/rob-connolly/pen/xyJgwx
Any help would be appreciated.

its a pretty simple solution just call the stop function in the if condition of n == total
if (n == total) {
$('#results').html('<h3>Your score is: ' + score + ' out of ' + highest + '!</h3>
<button onclick="myScore()">Add Your Name To Scoreboard!</a>')
stop()
}
https://codepen.io/nony14/pen/VwYREgr

Try using clearInterval() to stop the timer.
https://codepen.io/thingevery/pen/dyPrgwz

How to stop javascript counter at specific number

I have this javascript code for tampermonkey that works on Amazon. What it does is just counts up your gift card balance and makes it look like I am getting money. I want to know if it is possible to make it stop at a specific number.
var oof = document.getElementById("gc-ui-balance-gc-balance-value");
var lastCount = localStorage.getItem("lastCount");
oof.innerText = '$' + lastCount || "$10000";
function animateValue(id) {
var obj = document.getElementById(id);
var current = parseInt(localStorage.getItem("lastCount")) || 10000;
setInterval(function () {
var nextCount = current++;
localStorage.setItem("lastCount", nextCount);
obj.innerText = '$' + nextCount;
}, 0.1);
}
animateValue('gc-ui-balance-gc-balance-value')

Use clearInterval inside your setInterval callback so each time the callback is called, you can check if the new count has reached your threshold and clear the timer if it does.
If you check the value outside of the callback, the logic won't be called at each count increment.
function animateValue(id) {
var obj = document.getElementById(id);
var current = parseInt(localStorage.getItem("lastCount")) || 10000;
var interval = null;
var maxCount = 1000;
var callback = function() {
var nextCount = current++;
if (nextCount === maxCount) {
clearInterval(interval);
}
localStorage.setItem("lastCount", nextCount);
obj.innerText = '$' + nextCount;
}
interval = setInterval(callback, 0.1);
}
Here is a demo:
let current = 0;
let interval = null;
const callback = () => {
let nextCount = current++;
console.log(nextCount);
if (nextCount === 5) {
clearInterval(interval);
}
}
interval = setInterval(callback, 100);

May be by clearing the interval when current reaches to a specific value like this
function animateValue(id) {
// rest of the code
let interval = setInterval(function() {
var nextCount = current++;
localStorage.setItem("lastCount", nextCount);
obj.innerText = '$' + nextCount;
}, 0.1);
if (current === requiredVal) {
clearInterval(interval)
}
return current;
}

multiple stopwatch in jquery [closed]

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I want to make multiples stopwatches in jquery, but the problem is i want the stopwatch the respective stopwatch to sun when we hit the corresponding button, and should stop when we hit button for another stopwatch and that respective stopwatch should start simultaneously, please see the image for reference, i know the question is not so clear, sorry for inconvenience.
thanks in advance.

try this one:
$(document).ready(function() {
(function($){
$.extend({
APP : {
formatTimer : function(a) {
if (a < 10) {
a = '0' + a;
}
return a;
},
startTimer : function(dir) {
var a;
// save type
$.APP.dir = dir;
// get current date
$.APP.d1 = new Date();
switch($.APP.state) {
case 'pause' :
// resume timer
// get current timestamp (for calculations) and
// substract time difference between pause and now
$.APP.t1 = $.APP.d1.getTime() - $.APP.td;
break;
default :
// get current timestamp (for calculations)
$.APP.t1 = $.APP.d1.getTime();
// if countdown add ms based on seconds in textfield
if ($.APP.dir === 'cd') {
$.APP.t1 += parseInt($('#cd_seconds').val())*1000;
}
break;
}
// reset state
$.APP.state = 'alive';
$('#' + $.APP.dir + '_status').html('Running');
// start loop
$.APP.loopTimer();
},
pauseTimer : function() {
// save timestamp of pause
$.APP.dp = new Date();
$.APP.tp = $.APP.dp.getTime();
// save elapsed time (until pause)
$.APP.td = $.APP.tp - $.APP.t1;
// change button value
$('#' + $.APP.dir + '_start').val('Resume');
// set state
$.APP.state = 'pause';
$('#' + $.APP.dir + '_status').html('Paused');
},
stopTimer : function() {
// change button value
$('#' + $.APP.dir + '_start').val('Restart');
// set state
$.APP.state = 'stop';
$('#' + $.APP.dir + '_status').html('Stopped');
},
resetTimer : function() {
// reset display
$('#' + $.APP.dir + '_ms,#' + $.APP.dir + '_s,#' + $.APP.dir + '_m,#' + $.APP.dir + '_h').html('00');
// change button value
$('#' + $.APP.dir + '_start').val('Start');
// set state
$.APP.state = 'reset';
$('#' + $.APP.dir + '_status').html('Reset & Idle again');
},
endTimer : function(callback) {
// change button value
$('#' + $.APP.dir + '_start').val('Restart');
// set state
$.APP.state = 'end';
// invoke callback
if (typeof callback === 'function') {
callback();
}
},
loopTimer : function() {
var td;
var d2,t2;
var ms = 0;
var s = 0;
var m = 0;
var h = 0;
if ($.APP.state === 'alive') {
// get current date and convert it into
// timestamp for calculations
d2 = new Date();
t2 = d2.getTime();
// calculate time difference between
// initial and current timestamp
if ($.APP.dir === 'sw') {
td = t2 - $.APP.t1;
// reversed if countdown
} else {
td = $.APP.t1 - t2;
if (td <= 0) {
// if time difference is 0 end countdown
$.APP.endTimer(function(){
$.APP.resetTimer();
$('#' + $.APP.dir + '_status').html('Ended & Reset');
});
}
}
// calculate milliseconds
ms = td%1000;
if (ms < 1) {
ms = 0;
} else {
// calculate seconds
s = (td-ms)/1000;
if (s < 1) {
s = 0;
} else {
// calculate minutes
var m = (s-(s%60))/60;
if (m < 1) {
m = 0;
} else {
// calculate hours
var h = (m-(m%60))/60;
if (h < 1) {
h = 0;
}
}
}
}
// substract elapsed minutes & hours
ms = Math.round(ms/100);
s = s-(m*60);
m = m-(h*60);
// update display
$('#' + $.APP.dir + '_ms').html($.APP.formatTimer(ms));
$('#' + $.APP.dir + '_s').html($.APP.formatTimer(s));
$('#' + $.APP.dir + '_m').html($.APP.formatTimer(m));
$('#' + $.APP.dir + '_h').html($.APP.formatTimer(h));
// loop
$.APP.t = setTimeout($.APP.loopTimer,1);
} else {
// kill loop
clearTimeout($.APP.t);
return true;
}
}
}
});
$('#sw_start').live('click', function() {
$.APP.startTimer('sw');
});
$('#cd_start').live('click', function() {
$.APP.startTimer('cd');
});
$('#sw_stop,#cd_stop').live('click', function() {
$.APP.stopTimer();
});
$('#sw_reset,#cd_reset').live('click', function() {
$.APP.resetTimer();
});
$('#sw_pause,#cd_pause').live('click', function() {
$.APP.pauseTimer();
});
})(jQuery);
});
DEMO HERE
OR
$(function () {
// Never assume one widget is just used once in the page. You might
// think of adding a second one. So, we adjust accordingly.
$('.stopwatch').each(function () {
// Cache very important elements, especially the ones used always
var element = $(this);
var running = element.data('autostart');
var hoursElement = element.find('.hours');
var minutesElement = element.find('.minutes');
var secondsElement = element.find('.seconds');
var millisecondsElement = element.find('.milliseconds');
var toggleElement = element.find('.toggle');
var resetElement = element.find('.reset');
var pauseText = toggleElement.data('pausetext');
var resumeText = toggleElement.data('resumetext');
var startText = toggleElement.text();
// And it's better to keep the state of time in variables
// than parsing them from the html.
var hours, minutes, seconds, milliseconds, timer;
function prependZero(time, length) {
// Quick way to turn number to string is to prepend it with a string
// Also, a quick way to turn floats to integers is to complement with 0
time = '' + (time | 0);
// And strings have length too. Prepend 0 until right.
while (time.length < length) time = '0' + time;
return time;
}
function setStopwatch(hours, minutes, seconds, milliseconds) {
// Using text(). html() will construct HTML when it finds one, overhead.
hoursElement.text(prependZero(hours, 2));
minutesElement.text(prependZero(minutes, 2));
secondsElement.text(prependZero(seconds, 2));
millisecondsElement.text(prependZero(milliseconds, 3));
}
// Update time in stopwatch periodically - every 25ms
function runTimer() {
// Using ES5 Date.now() to get current timestamp
var startTime = Date.now();
var prevHours = hours;
var prevMinutes = minutes;
var prevSeconds = seconds;
var prevMilliseconds = milliseconds;
timer = setInterval(function () {
var timeElapsed = Date.now() - startTime;
hours = (timeElapsed / 3600000) + prevHours;
minutes = ((timeElapsed / 60000) + prevMinutes) % 60;
seconds = ((timeElapsed / 1000) + prevSeconds) % 60;
milliseconds = (timeElapsed + prevMilliseconds) % 1000;
setStopwatch(hours, minutes, seconds, milliseconds);
}, 25);
}
// Split out timer functions into functions.
// Easier to read and write down responsibilities
function run() {
running = true;
runTimer();
toggleElement.text(pauseText);
}
function pause() {
running = false;
clearTimeout(timer);
toggleElement.text(resumeText);
}
function reset() {
running = false;
pause();
hours = minutes = seconds = milliseconds = 0;
setStopwatch(hours, minutes, seconds, milliseconds);
toggleElement.text(startText);
}
// And button handlers merely call out the responsibilities
toggleElement.on('click', function () {
(running) ? pause() : run();
});
resetElement.on('click', function () {
reset();
});
// Another advantageous thing about factoring out functions is that
// They are reusable, callable elsewhere.
reset();
if(running) run();
});
});
DEMO HERE

timer implementation in javascript

I had written following code for implementing a timer in JS. But the issue is, for the subsequent recursive calls, the method throws reference error for timeChkSplitTime. How does it happen as its being passed in settimeout().
Also, later I used the easy timer js lib for this. If possible, pls provide an idea to configure the timer for minutes and seconds alone.
function timeChkold(timeChkSplitTime) {
var min = timeChkSplitTime[0], sec = timeChkSplitTime[1];
if (!(timeChkSplitTime[0]==0 && splitTime[1]==0)) {
var strSec, strMin = "0"+min.toString();
if (sec < 10) strSec = "0"+ sec.toString();
else strSec = sec.toString();
$(".timer-btn time").html(strMin+":"+strSec);
timeChkSplitTime[0]=0;
if (sec > 0) timeChkSplitTime[1]--;
else timeChkSplitTime[1] = 59;
setTimeout( "timeChk(timeChkSplitTime);", 1000);
}
else {
var startBtn = $(".start-btn");
startBtn.html("Start");
startBtn.css( {
"border": "1px solid #56B68B",
"background": "#56B68B",
});
var startTime = "01:00";
$(".timer-btn time").html(startTime);
}
}

setTimeout( "timeChk(timeChkSplitTime);", 1000);
should be
setTimeout( timeChk(timeChkSplitTime), 1000);

Variables aren't parsed through strings, on the line with the code:
setTimeout( "timeChk(timeChkSplitTime);", 1000);
It's literally reading the parameter as the value as the text timeChkSplitTime and not the value of the variable timeChkSplitTime. Other than using a string use a function for setTimeout:
setTimeout( timeChk(timeChkSplitTime), 1000);

your code is a little bit of a spaghetti code. you should seperate your code logic from the view. split them into functions. and most importantly, using setTimeout is not efficient in this case.
var CountdownTimer = function(startTime) {
var timeInSeconds = this.stringToSeconds(startTime);
this.original = timeInSeconds;
this.time = timeInSeconds;
this.running = false;
}
CountdownTimer.prototype.start = function(callback) {
this.running = true;
this.interval = setInterval(function() {
if(this.time < 1) {
this.running = false;
clearInterval(this.interval);
} else {
this.time -= 1;
callback();
}
}.bind(this), 1000);
}
CountdownTimer.prototype.pause = function() {
if(this.running) {
this.running = false;
clearInterval(this.interval);
}
}
CountdownTimer.prototype.restart = function() {
this.time = this.original;
}
CountdownTimer.prototype.stringToSeconds = function(timeSting) {
var timeArray = timeSting.split(':');
var minutes = parseInt(timeArray[0], 10);
var seconds = parseInt(timeArray[1], 10);
var totalSeconds = (minutes*60) + seconds;
return totalSeconds;
}
CountdownTimer.prototype.secondsToStrings = function(timeNumber) {
finalString = '';
var minutes = parseInt(timeNumber/60, 10);
var seconds = timeNumber - (minutes*60);
var minStr = String(minutes);
var secStr = String(seconds);
if(minutes < 10) minStr = "0" + minStr;
if(seconds < 10) secStr = "0" + secStr;
return minStr + ":" + secStr;
}
to run this code you can add the following
var countdownTest = new CountdownTimer("01:15");
countdownTest.start(onEachTick);
function onEachTick() {
var time = countdownTest.secondsToStrings(countdownTest.time);
console.log(time)
}
you can write your custom code in the onEachTick funciton.
you can check if the timer is running by typing countdownTest.running.
you can also restart and pause the timer. now you can customize your views however you want.

Countdown Timer is not showing in javascript

I am new in javascript, I want to create a countdown timer with localStorage which starts from given time and end to 00:00:00, but it's not working,
When I am running my code it is showing value "1506".
Here is my code
<script type="text/javascript">
if (localStorage.getItem("counter")) {
var CurrentTime = localStorage.getItem("counter");
}
else {
var Hour = 3;
var Minute = 25;
var Second = 60;
var CurrentTime = Hour.toString() + ":" + Minute.toString() + ":" + Second.toString();
}
function CountDown() {
document.getElementById('lblDuration').innerHTML = CurrentTime;
Second--;
if (Second == -1) {
Second = 59;
Minute--;
}
if (Minute == -1) {
Minute = 59;
Hour--;
}
localStorage.setItem("counter", CurrentTime);
}
var interval = setInterval(function () { CountDown(); }, 1000);
</script>

you need to declare variables Hour, Minute, Second, CurrentTime out side if else block. In this case they are not in function CountDown() scope.
you are not setting CurrentTime = Hour.toString() + ":" + Minute.toString() + ":" + Second.toString(); after localStorage.setItem("counter", CurrentTime);
var Hour = 3;
var Minute = 25;
var Second = 60;
var CurrentTime = Hour.toString() + ":" + Minute.toString() + ":" + Second.toString();
function CountDown() {
document.getElementById('lblDuration').innerHTML = CurrentTime;
Second--;
if (Second == -1) {
Second = 59;
Minute--;
}
if (Minute == -1) {
Minute = 59;
Hour--;
}
CurrentTime = Hour.toString() + ":" + Minute.toString() + ":" + Second.toString();
}
setInterval(function () {
CountDown();
}, 1000);
<div id="lblDuration"></div>

When localStorage is available you don set the values for Hour, Minute and Second. So when the countdown function executed it finds Second to be undefined and the statement Second-- converts Second to NaN.
To fix it just initialize the Hour, Minute and Second Variable.
I 've refactored your code a little bit hope it helps:
function CountDown() {
var currentTime = getCurrentTime();
printCurrentTime(currentTime)
currentTime.second--;
if (currentTime.second == -1) {
currentTime.second = 59;
currentTime.minute--;
}
if (currentTime.minute == -1) {
currentTime.minute = 59;
currentTime.hour--;
}
setCurrentTime(currentTime);
}
function setCurrentTime(newCurrentTime){
if(localStorage) localStorage.setItem("counter", JSON.stringify(newCurrentTime));
else setCurrentTime.storage = newCurrentTime;
}
function getCurrentTime(){
var result = localStorage ? localStorage.getItem("counter") : setCurrentTime.storage;
result = result || {hour:3, minute:25, second:60};
if (typeof(result) === "string")result = JSON.parse(result);
result.toString = function(){
return result.hour + ":" + result.minute + ":" + result.second;
}
return result;
}
function printCurrentTime(currentime){
var domTag = document.getElementById('lblDuration');
if(domTag) domTag.innerHTML = currentime.toString();
else console.log(currentime);
}
setInterval(function () { CountDown(); }, 1000);