I am currently building a website to host software. What I want is to add to the project pages is a slideshow of screenshots cycling, changing images about every 5 seconds. Is there any way to a script triggered at a time interval using just JavaScript? ..or will I have to resort to alternative methods for achieving my desired functionality. Thanks in advance for any help!
The setInterval() method calls a function at specified intervals (in milliseconds). The setInterval() method continues calling the function until clearInterval() is called, or the window is closed. 1 second = 1000 milliseconds.
To call a JavaScript function every 5 seconds continuously, we call setInterval with the function that we want to run and the interval between runs. const interval = setInterval(() => { // ... }, 5000); clearInterval(interval); to call setInterval with the callback we want to run and 5000 millisecond period.
In JavaScript, a block of code can be executed in specified time intervals. These time intervals are called timing events. There are two methods for executing code at specific intervals. They are: setInterval()
You can use JavaScript Timing Events to call function after certain interval of time: This shows the alert box every 3 seconds: setInterval(function(){alert("Hello")},3000); You can use two method of time event in javascript.
setInterval
:
function doSomething() {
alert('This pops up every 5 seconds and is annoying!');
}
setInterval(doSomething, 5000); // Time in milliseconds
Pass it the function you want called repeatedly every n milliseconds. (setTimeout
, by the way, will call a function with a timeout.)
If you ever want to stop the timer, hold onto setInterval
’s return value and pass it to clearInterval
.
You want the setInterval
function.
setInterval(function() {
// This will be executed every 5 seconds
}, 5000); // 5000 milliseconds
Basic reference: http://www.w3schools.com/jsref/met_win_setinterval.asp (please ignore the reference to the "lang" parameter)
More indepth reference: https://developer.mozilla.org/en-US/docs/Web/API/window.setInterval
You can use window.setInterval
Sample usage:
window.setInterval(function () {
console.log("foo");
}, 3000);
It Changes the date time in a div and time changes frequently after 1 sec.
setInterval(function(){
var date=new Date();
$('.class').html(date);
},1000);
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