Develop Reference

automatic go to another link HTML

<script>
const TIME_LIMIT = 60;
let timePassed = 0;
let timeLeft = TIME_LIMIT;
let timerInterval = null;
let remainingPathColor = COLOR_CODES.info.color;
startTimer();
function onTimesUp() {
clearInterval(timerInterval);
}
function startTimer() {
timerInterval = setInterval(() => {
timePassed = timePassed += 1;
timeLeft = TIME_LIMIT - timePassed;
document.getElementById("base-timer-label").innerHTML = formatTime(
timeLeft
);
setCircleDasharray();
setRemainingPathColor(timeLeft);
if (timeLeft === 0) {
onTimesUp();
}
}, 1000);
}
</script>
If i want to make after the times is up it direct to another link automatically.
what should i do?
I want to do something at the java script onTimesup funtion.

you can try like to below, to go to other page automatically
setTimeout(function(){
location.href="./sample"
} , 2000);
this function will go auto go to page after 2 second, please comment if query.

Clear Interval + message and replace with a link

How can I clean interval+message and replace those with a link.
Below code is opening a link after 10 seconds in new window. When I get back to that page, message showing You will redirect in 0 seconds
What I want is, after 10 seconds (after opening link in new tab) the counter and message will replace with a new message and link. i.e. If you are not redirected to the link Click Here to go to the link.
var count = 10;
var counter;
function start(){
counter = setInterval(timer, 1000);
}
function timer() {
var output = document.getElementById("displaySeconds");
output.innerHTML = count;
count--;
if (count < 0) {
clearInterval(counter);
window.open("https://www.google.com");
return;
}
}
window.addEventListener("load", start, false);
<br>You will redirect in <span id="displaySeconds">10</span> seconds.<br />

You can create a separate div with the text when the user is not redirected with the display property set to none (display: none). When the timer expires, you can hide the original text and show the alternative version.
There is a working jsfiddle below. I modified the counter to 4 seconds not to wait too much, you can adjust it how you want.
var count = 4;
var counter;
function start() {
counter = setInterval(timer, 1000);
}
function timer() {
var output = document.getElementById("displaySeconds");
output.innerHTML = count;
count--;
if (count < 0) {
clearInterval(counter);
window.open("https://www.google.com");
let originalText = document.getElementById("original");
let noRedirectText = document.getElementById("noredirect");
originalText.style.display = "none";
noRedirectText.style.display = "block";
}
}
window.addEventListener("load", start, false);
<div>
<div id="original">
You will be redirected in <span id="displaySeconds">4</span> seconds.
</div>
<div style="display: none" id="noredirect">
If you are not redirected click here to go to the link.
</div>
</div>
Cheers!

Just add code to the interval function that hides the first message and shows the other.
var count = 5;
var output = document.getElementById("displaySeconds");
var counter = null;
function timer() {
output.textContent = count;
count--;
if (count < 0) {
clearInterval(counter);
window.open("https://www.google.com");
// Hide the first message and show the second:
document.querySelector(".redirect1").classList.add("hidden");
document.querySelector(".redirect2").classList.remove("hidden");
}
}
addEventListener("load", function(){
couner = setInterval(timer, 1000);
});
.hidden { display:none; }
<div class="redirect1">You will redirect in <span id="displaySeconds">5</span> seconds.</div>
<!-- The following is initially hidden because of the CSS class -->
<div class="redirect2 hidden">If you aren't redirected, click here</div>

This function replaces the current text with your required text if the redirect was not able to take place.
var count = 10;
var counter = setInterval(timer, 1000);
var output = document.getElementById("displaySeconds");
var container = document.getElementById("container");
function timer() {
count--;
if (count === 0) {
stopTimer();
}
output.innerHTML = count;
};
function stopTimer() {
clearInterval(counter);
window.open("https://www.google.com");
container.innerHTML = ' If you are not redirected to the link Click Here to go to the link.';
}
<div id="container">
You will redirect in <span id="displaySeconds">10</span> seconds.
</div>

Confused about SetInterval and closures

How can we repeatedly update the contents of a div using setInterval
I am using the question from this link as a reference How to repeatedly update the contents of a <div> by only using JavaScript?
but i have got few questions here
Can we do it without anonymous functions,using closures. I have tried but could not end up with any workable solution.
How can we make it run infinitely, with the following code it gets stopped once i reaches 10.
window.onload = function() {
var timing = document.getElementById("timer");
var i = 0;
var interval = setInterval(function() {
timing.innerHTML = i++;
if (i > 10) {
clearInterval(interval);
i = 0;
return;
}
}, 1000);
}
<div id="timer"></div>
I am confused about setIntervals and closures
can some one help me here
Thanks

You could do something like this with a closure. Just reset your i value so, you will always be within your given range.
window.onload = function() {
var updateContent = (function(idx) {
return function() {
if (idx === 10) {
idx = 0;
}
var timing = document.getElementById("timer");
timing.innerHTML = idx++;
}
})(0);
var interval = setInterval(updateContent, 1000);
}
<div id="timer"></div>

This one should be clearer.
function updateTimer() {
var timer = document.getElementById("timer");
var timerValue = parseInt(timer.getAttribute("data-timer-value")) + 1;
if (timerValue == 10) {
timerValue = 0;
}
timer.setAttribute("data-timer-value", timerValue);
timer.innerHTML = "the time is " + timerValue;
}
window.onload = function() {
setInterval(updateTimer, 1000);
}
<div id="timer" data-timer-value="0"></div>

Where do I place my "document.getElementById("").innerHTML = "";" Within my Javascript?

At the moment I am creating an on screen timer in javascript. This is the code for my timer:
var i = 30;
function startTimer() {
var countdownTimer = setInterval(function() {
console.log(i);
i = i - 1;
if (i < 0) {
clearInterval(countdownTimer);
}
}, 1000);
}
I am just wondering where I should place my document.getElementById("time-remaining").innerHTML = "Time Remaining:" + i;
I am also wondering if the above document.getElementById is correct (will it be displayed as a onscreen timer or will it fail or something)?
Thanks in advanced.

Try this:
var i = 30;
function startTimer() {
var countdownTimer = setInterval(function () {
console.log(i);
i = i - 1;
if (i < 0) {
clearInterval(countdownTimer);
return; //This will prevent -1 to be written to html
}
document.getElementById("time-remaining").innerHTML = "Time Remaining:" + i;
}, 1000);
}
startTimer();
Dont forget to call the function.
Demo: http://jsfiddle.net/GCu2D/842/

You can put the
document.getElementById("time-remaining").innerHTML = "Time Remaining:" + i;
After the startTimer function or really anywhere.
And yes thedocument.getElementById is correct, if your html id is the same one as in javascript.

Countdown timer on Label for 30 seconds using Javascript

I use the following example Redirect to redirect to a page. What i need is inside the image i would like to have a label or some text which should show count down from 30(secs) to 0(secs). I need javascript for this requirement.
Any help is appreciated

Hi include this before your existing DIV
<div id="myCounter">
</div>
Write the following Script
<script type="text/javascript">
var milisec = 0
var seconds = 30
document.getElementById("myCounter").innerHTML = '30';
function display() {
if (milisec <= 0) {
milisec = 9
seconds -= 1
}
if (seconds <= -1) {
milisec = 0
seconds += 1
}
else
milisec -= 1
document.getElementById("myCounter").innerHTML = seconds;
setTimeout("display()", 100)
}
display()
</script>
Adjust your DIV as per your need in the design by setting the position to absolute

<span id="myCounter"></span>
<script>
function counter (count) {
if (count > 0) {
document.getElementById("myCounter").innerHTML = count;
window.setTimeout(function() {counter(count-1)}, 1000);
} else {
window.location.href = "/redirected-page/";
}
}
counter(30);
</script>