well my problem is hopefully easy: 3 actions that shall happen while hovering a photo. The timer at the bottom works now, the other things crashed. A Page shall open in 5 seconds and the photo shall move out of the display before. Sounds easy, doesnt it? I hope so.
Do you guys know what I can do?
Thanks already and best regards!
<script>
var interval;
var timer = 5;
$('.HoverBalken').on({'mouseover': function () {
timer = setTimeout(function () {
$('.HoverBalken').toggleClass('HoverBalken-active');
$('.N').toggleClass('N-active');
$('.K').toggleClass('K-active');
}, );
timer = setTimeout(function () {
window.location = "FoliagePlates.html"
}, 5000);
}, 'mouseover': function () {
interval = setInterval(function() {
timer--;
$('.timer').text(timer);
if (timer === 0) clearInterval(interval);
}, 1000);
}, 'mouseout' : function () {
clearTimeout(timer);
$('.HoverBalken').removeClass('HoverBalken-active');
$('.N').removeClass('N-active');
$('.K').removeClass('K-active');
clearInterval(interval);
timer = 5;
$('.timer').text(timer);
}
});
</script>
<script>
var interval;
var timer = 5;
var timeout1,timeout2;
$('.HoverBalken')
.mouseover(function() {
//use different variable than your timer
timeout1 = setTimeout(function () {
$('.HoverBalken').toggleClass('HoverBalken-active');
$('.N').toggleClass('N-active');
$('.K').toggleClass('K-active');
}, 2000); //forgot time here
//use different variable than your timer and first timeout
timeout2 = setTimeout(function () {
window.location = "FoliagePlates.html"
}, 5000);
//stay in same scope, don't define event again
interval = setInterval(function() {
timer--;
$('.timer').text(timer);
if (timer === 0) clearInterval(interval);
}, 1000);
})
.mouseout(function() {
//clear both timers
clearTimeout(timeout1);
clearTimeout(timeout2);
$('.HoverBalken').removeClass('HoverBalken-active');
$('.N').removeClass('N-active');
$('.K').removeClass('K-active');
clearInterval(interval);
timer = 5;
$('.timer').text(timer);
});
</script>
this should fix it, notice the comments in code
Related
I'm running a node server with raspberry pi gpio modules installed. I'm trying to get my ESC to start and run for 0.5 seconds, then I need it to stop for .5 second, then start again in a loop. however if "start" = 0 (Button off) I need the loop to stop completely and set the servo pulse width to 1000 (Motor Stop)
Here is my code, It kinda works. But doesn't stop
var start = new blynk.VirtualPin(4);
start.on('write', function t(start) {
if (start == 1) {
setInterval(function() {
setInterval(function() {
motor.servoWrite(1920);
}, 500);
setInterval(function() {
motor.servoWrite(1000);
}, 1000);
}, 500);
} else {
motor.servoWrite(1000);
}
motor.servoWrite(1000);
});
Could someone show me where I've gone wrong?
Store your interval in a variable
var myInterval = setInterval(function() { [... your code code] },delay);
then to stop it by
clearInterval(myInterval);
var start = new blynk.VirtualPin(4);
motor.servoWrite(1000);
var interval, timeout;
start.on('write', function t(start) {
if (start == 1) {
clearInterval(interval);
clearTimeout(timeout);
interval = setInterval(function() {
motor.servoWrite(1920);
timeout = setTimeout(function() {
motor.servoWrite(1000);
}, 500);
}, 1000);
} else {
clearInterval(interval);
clearTimeout(timeout);
motor.servoWrite(1000);
}
});
I think setInterval might be the wrong thing to use. The setInterval is reoccurring. Where you really just want to run something once, wait, then run something else. Try doing it with setTimeout, it waits for x ms then executes something.
var id = null;
start.on('write', function t(start) {
if(start == 1){
pulse();
}
else {
clearTimeout(id);
motor.servoWrite(1000);
}
});
function pulse() {
servoOn();
id = setTimeout(function(){
servoOff();
id = setTimeout(function(){
pulse();
}, 1000);
}, 500);
}
function servoOn(){
motor.servoWrite(1920);
}
function servoOff(){
motor.servoWrite(1000);
}
I have several functions defined. The setInterval is picking one at random every second. How do I temporarily clear the interval to pause this behavior?
Demo:
http://jsfiddle.net/kthornbloom/NtVBZ/1/
Code:
function playZoomout() {
$('.debug').append('1');
}
function playZoomin() {
$('.debug').append('2');
}
function playPanright() {
$('.debug').append('3');
}
function playPanleft() {
$('.debug').append('4');
}
var fns = [playZoomout, playZoomin, playPanright, playPanleft]
setInterval(function () {
fns[Math.floor(Math.random() * fns.length)]();
}, 1000);
// This isn't working. Probably because the interval above isn't really named?
$('.pause').hover(function(ev){
clearInterval(fns);
}, function(ev){
timer = setInterval( fns, 1000);
});
var fns = [playZoomout, playZoomin, playPanright, playPanleft];
var fn = function () {
fns[Math.floor(Math.random() * fns.length)]();
}
var myInterval = setInterval(fn, 1000);
$('.pause').hover(function(ev){
clearInterval(myInterval);
}, function(ev){
//timer = setInterval( fns, 1000); -> this does not make sense
myInterval = setInterval(fn, 1000); // this does
});
Working demo
i need a JavaScript, that relaods a page every 30 seconds, and will show how much time there is until next reload at the ID time-to-update, Example:
<p>Refreshing in <span id="time-to-update" class="light-blue"></span> seconds.</p>
i also need it to repeat itself infinitely.
thank you for reading, i hope it helps not me but everyone else, and a real big thank you if you could make this script.
(function() {
var el = document.getElementById('time-to-update');
var count = 30;
setInterval(function() {
count -= 1;
el.innerHTML = count;
if (count == 0) {
location.reload();
}
}, 1000);
})();
A variation that uses setTimeout rather than setInterval, and uses the more cross-browser secure document.location.reload(true);.
var timer = 30;
var el = document.getElementById('time-to-update');
(function loop(el) {
if (timer > 0) {
el.innerHTML = timer;
timer -= 1;
setTimeout(function () { loop(el); }, 1000);
} else {
document.location.reload(true);
}
}(el));
http://jsfiddle.net/zGGEH/1/
var timer = {
interval: null,
seconds: 30,
start: function () {
var self = this,
el = document.getElementById('time-to-update');
el.innerText = this.seconds; // Output initial value
this.interval = setInterval(function () {
self.seconds--;
if (self.seconds == 0)
window.location.reload();
el.innerText = self.seconds;
}, 1000);
},
stop: function () {
window.clearInterval(this.interval)
}
}
timer.start();
I'm officially stuck. I can't seem to get the stopTimer() function to work properly. Any help would be greatly appreciated. Thanks!
http://jsfiddle.net/4Efbd/1/
var counter;
function stopTimer() {
window.clearInterval(counter);
$('#queryTimer').html('');
}
function startTimer() {
var count = 60;
var counter = setInterval(function () {
count = count - 1;
if (count <= 0) {
window.clearInterval(counter);
return;
}
$('#queryTimer').html('Requery in:' + count + ' Seconds.');
}, 1000);
}
$('#start').click(function () {
startTimer();
});
$('#stop').click(function () {
stopTimer();
});
var counter = setInterval(function () {
That says "create a new variable counter". This means that the existing variable never gets changed, so clearInterval doesn't have the right identifier to clear it. You want to use the existing variable:
counter = setInterval(function () {
My Jquery:
function myTimer() {
var sec = 15
var timer = setInterval(function() {
$('#timer').text(sec--);
if (sec == -1) {
clearInterval(timer);
alert('done');
}
} , 1000);
}
$("#knap").click(function() {
myTimer();
});
$("#reset").click(function() {
// set timer to 15 sec again..
});
I want the timer to be reset when clicked on #reset.
You need to leave your "timer" variable in a scope that is available the next time you call the myTimer function so you can clear the existing interval and reset it with a new interval. Try:
var timer;
functionn myTimer() {
var sec = 15
clearInterval(timer);
timer = setInterval(function() {
$('#timer').text(sec--);
if (sec == -1) {
clearInterval(timer);
alert('done');
}
} , 1000);
}
$("#knap").click(function() {
myTimer();
});
$("#reset").click(function() {
myTimer();
});
or you could do something along these lines:
var myTimer = function(){
var that = this,
time = 15,
timer;
that.set = function() {
console.log('setting up timer');
timer = setInterval(function(){
console.log('running time: ' + time);
},1000);
}
that.reset = function(){
console.log('clearing timer');
clearInterval(timer);
}
return that;
}();
and run when you need to:
myTimer.set();
myTimer.reset();
Clear the timer every time it's initalized, that way all you have to do is call the function again to reset the timer :
var timer;
function myTimer(sec) {
if (timer) clearInterval(timer);
timer = setInterval(function() {
$('#timer').text(sec--);
if (sec == -1) {
clearInterval(timer);
alert('done');
}
}, 1000);
}
$("#knap, #reset").click(function() {
myTimer(15);
});
FIDDLE
You could re-write your myTimer() function like so:
function myTimer() {
var sec, timer = null;
myTimer = function() {
sec = 15;
clearInterval( timer );
timer = setInterval(function() {
$('#timer').text(sec--);
if (sec == -1) {
clearInterval(timer);
alert('done');
}
} , 1000);
};
myTimer();
}
Now, whenever you call myTimer(), the setInterval gets reset.
Here's an approach that is more in tune with the way JS was designed (as a functional language for those who still don't know). Rather than relying on a global variable, use a closure:
$("#knap").click(function start()//named callback to bind && unbind:
{
$(this).unbind('click');//no need to start when started
$("#reset").unbind('click').click((function(timer)
{//timer is in scope thanks to closure
return function()
{//resets timer
clearInterval(timer);
timer = null;
$('#knap').click(start);//bind the start again
//alternatively, you could change the start button to a reset button on click and vice versa
}
})(setInterval((function(sec)
{
return function()
{
$('#timer').text(sec--);
if (sec === -1)
{
$('#reset').click();//stops interval
$('#reset').unbind('click');//no more need for the event
alert('done');
}//here's the interval counter: 15, passed as argument to closure
})(15),1000)));//set interval returns timer id, passed as argument to closure
});
Now I will admit this is rather messy (and untested) but this way there reset event is only available when it's necessary, and you're not using any globals. But crucially, this is where JS's power lies: functions as 1st class objects, passing them as arguments and return values... just go function-crazy :)
I've set up a working Fiddle, too
You could also use a jQuery timer plugin, then you don't need to pass around the Variable.
Plugin: http://archive.plugins.jquery.com/project/timers
Example for the plugin: http://blog.agrafix.net/2011/10/javascript-timers-mit-jquery/