We Keep Coding

what are ways to preform javascript loops [duplicate]

This question already has answers here:
What's the easiest way to call a function every 5 seconds in jQuery? [duplicate]
(7 answers)
Closed 8 years ago.
How do I get this javascript to run every second?
source code:
<script type="text/javascript">
$(function() {
//More Button
$('.more').live("click",function() {
var ID = $(this).attr("id");
if(ID) {
$("#more"+ID).html('<img src="moreajax.gif" />');
$.ajax({
type: "POST",
url: "ajax_more.php",
data: "lastmsg="+ ID,
cache: false,
success: function(html){
$("ol#updates").prepend(html);
$("#more"+ID).remove();
}
});
} else {
$(".morebox").html('no posts to display');
}
return false;
});
});
</script>

Use setInterval() to run a piece of code every x milliseconds.
You can wrap the code you want to run every second in a function called runFunction.
So it would be:
var t=setInterval(runFunction,1000);
And to stop it, you can run:
clearInterval(t);

Use setInterval:
$(function(){
setInterval(oneSecondFunction, 1000);
});
function oneSecondFunction() {
// stuff you want to do every second
}
Here's an article on the difference between setTimeout and setInterval. Both will provide the functionality you need, they just require different implementations.

You can use setTimeout to run the function/command once or setInterval to run the function/command at specified intervals.
var a = setTimeout("alert('run just one time')",500);
var b = setInterval("alert('run each 3 seconds')",3000);
//To abort the interval you can use this:
clearInterval(b);

window.setTimeout(func,1000);
This will run func after 1000 milliseconds. So at the end of func you can call window.setTimeout again to go in a loop of 1 sec. You just need to define a terminate condition.
Reference

You can use setInterval:
var timer = setInterval( myFunction, 1000);
Just declare your function as myFunction or some other name, and then don't bind it to $('.more')'s live event.

Use setInterval(func, delay) to run the func every delay milliseconds.
setTimeout() runs your function once after delay milliseconds -- it does not run it repeatedly. A common strategy is to run your code with setTimeout and call setTimeout again at the end of your code.

Calling Javascript code automatically after 2 seconds [duplicate]

This question already has answers here:
what is setTimeOut() function in javascript?
(5 answers)
Closed 3 years ago.
i want to run similar task for my site. I want to run javascript code when user visit or click my URL, the code should be run after 2 seconds automatically after loading my page.
Please help.

You can use below code
window.onload = function() {
setTimeout(function() {
your functions()
},2000);
}
Onload function is called after page load complete and setTimeout is used for delayation

How to disable a link (preventDefault()) for 10 seconds, after user clicks on it? [duplicate]

This question already has answers here:
Sleep in JavaScript - delay between actions
(15 answers)
Closed 7 years ago.
I want widget.Rotator.rotate() to be delayed 5 seconds between calls... how do I do this in jQuery... it seems like jQuery's delay() wouldn't work for this...

You can use plain javascript, this will call your_func once, after 5 seconds:
setTimeout(function() { your_func(); }, 5000);
If your function has no parameters and no explicit receiver you can call directly setTimeout(func, 5000)
There is also a plugin I've used once. It has oneTime and everyTime methods.
jQuery timers plugin

var rotator = function(){
widget.Rotator.rotate();
setTimeout(rotator,5000);
};
rotator();
Or:
setInterval(
function(){ widget.Rotator.rotate() },
5000
);
Or:
setInterval(
widget.Rotator.rotate.bind(widget.Rotator),
5000
);

Aborting a JavaScript setTimeout function [duplicate]

This question already has answers here:
how to kill a setTimeout() function
(5 answers)
Stop scheduled JavaScript execution
(4 answers)
Closed 9 years ago.
The title may be misleading, but it's essentially what I need to accomplish.
I have an AJAX "Loading" text that I want to update if the server has taken more than 15 seconds to respond.
Here is the code:
$(".loader").html('Loading');
$(".loader").show();
setTimeout(function () {
if ($('.loader').is(":visible")) {
$(".loader").html('Click here to reload.</span>');
}
}, 15000);
Is there a better approach? When I eventually call $(".loader").hide(); I want the setTimeout counter to be aborted. Is it possible?

Sure. setTimeout returns a value you can pass to clearTimeout in order to stop timeout.
var handle = setTimeout(function () {
alert("Oh noes, I ran!")
}, 5000)
clearTimeout(handle)

You can use the clearTimeout function:
$(".loader").html('Loading');
$(".loader").show();
var timerId= setTimeout(function () {
if ($('.loader').is(":visible")) {
$(".loader").html('Click here to reload.</span>');
}
}, 15000);
$(".stop").click(function () {
clearTimeout(timerId);
$(".loader").html("done");
});
See this fiddle: http://jsfiddle.net/KaNUP/

I would recommend to make a shorter period (1 sec) and increment counter inside function you call. Then you can exit on successfull load or counter threshold, whichever comes earlier.

JavaScript setTimeout doesn't work [duplicate]

This question already has answers here:
Why is my function call that should be scheduled by setTimeout executed immediately? [duplicate]
(3 answers)
Closed 7 years ago.
I wanted a JavaScript function to run 60 seconds after page is loaded.
After a little research I have made, I've found that setTimeout() is the solution.
So that's what I did:
<body onLoad="setTimeout(postAction('news.reads', 'article'), 60000);">
Somehow, setTimeout does not work. After the page is loaded, there's no need to wait 60 seconds because postAction() runs immediately.
Why is it happening? How to solve it? Are there alternatives to setTimeout() up there?
Thank you!

You need to wrap postAction in a function to defer execution:
setTimeout(function() { postAction('news.reads', 'article'); }, 60000);
You are actually executing postAction immediately, your code is equivalent to:
var result = postAction('news.reads', 'article');
setTimeout(result, 60000);

The correct way to do what you want in JS, ie setting a timeout after the page is loaded:
(function(w)
{
var load = function()
{
setTimeout(postAction,60000);
if (w.removeEventListener)
{//remove listeners, to avoid leak...
return w.removeEventListener('load',load,false);
}
return w.attachEvent('onload',load);
};
if (w.addEventListener)
{
return w.addEventListener('load',load,false);
}
return w.attachEvent('onload',load);
}(this));
Instead of window.onload = function(){setTimeout(postAction,60000);};, which will work, too, but cause a mem-leak in IE <9. That's just for completeness' sake
Anyway, the key line here is setTimeout(postAction,60000);
Update
After seeing the code you're using, this is the easiest fix:
<body onLoad="setTimeout(function(){ return postAction('news.reads', 'article');}, 60000);">

Are you using setTimeout like :
setTimeout(function(){alert("OK");}, 1000 * 60); // alert "OK" in 60s

<script>
function doSomeJavascript() {
// javascript code goes here
alert('5 secs is up!');
}
// calls function doSomeJavascript() 5 secs after page load
var interval = setInterval(doSomeJavascript, 5000);
setTimeout(function() {
window.clearInterval(interval);
}, 5000);
</script>