javascript break and continue the loop - javascript

How can I pause/break this loop when 'delay' and 'animation' inside it are running and continue it from the break place after 'animation' is done in order to prevent the 'i' variable from being overwritten?
Or maybe there are another ways to prevent the 'i' variable from overwriting during animation?
for(i=0;i<inputs.length;i++){
var now = inputs[i];
var top = inputs[i].attr('top');
if(!now.val()){
if(dialog.css('display')=='none'){
now.addClass('style');
dialog.css('top',top).fadeIn(200);
}
else {
dialog.delay(300).animate({"top": top}, 500, function(){
now.addClass('style');
});
}
}
else{
now.removeClass('style');
}
}
I can't put adding Class before delay and animation as I need to add Class with delay and after animation is done.

by recalling same function till all element animation complete.
var i = 0;
function animate() {
if (inputs.length == i) {
return;
}
var now = inputs[i];
var top = inputs[i].attr('top');
if (!now.val()) {
if (dialog.css('display') == 'none') {
now.addClass('style');
dialog.css('top', top).fadeIn(200, function(){
animate(); // recall it after fadein
});
} else {
dialog.delay(300).animate({
"top": top
}, 500, function () {
now.addClass('style');
animate();// recall it after animate complete
});
}
} else {
now.removeClass('style');
}
i++;
}
animate();

Related

jQuery fade in/out between divs

I have this code:
var next = null;
var outer = jQuery('.banner .container');
var current = outer.find('.banner-word:first');
current.fadeIn();
function fade() {
if (current.next('div.banner-word').length > 0) {
next = current.next('div.banner-word');
} else {
next = outer.find('.banner-word:first');
}
current.fadeOut();
next.fadeIn();
current = next;
setTimeout(fade, 11000);
}
// start the process
fade();
A few problems with it - 1) It seems to ignore the first banner-word div 2) On load it shows quickly shows the first 2 banner-word divs and then starts with the second banner-word div
Am I missing something obvious?
Try changing:
if (current.next('div.banner-word').length > 0) {
next = current.next('div.banner-word');
} else {
next = outer.find('.banner-word:first');
}
to:
if (current.next().is('div.banner-word')) {
next = current.next();
} else {
next = outer.find('.banner-word:first');
}
Edit:
try adding a delay to the initial fade() call.
Change
fade();
to
setTimeout(fade, 5000);

Resetting variables is not resetting game?

I am creating a Simon game and it works on round one, but once your each round two it immediately says incorrect.
jsfiddle
I reset all variables between the rounds, but it still seems to save them as it instantly says "Game Over!"
JS:
function makeGuess() {
...
var checkForComplete = setInterval(function () {
if (yourAnswer.length >= round) {
clearInterval(checkForComplete);
yourString = yourAnswer.toString();
correctString = correctAnswer.toString();
if (yourString === correctString) {
alert('Correct');
round++;
yourAnswer = [];
correctAnswer = [];
yourString = "";
correctString = "";
playSimon();
}
else {
alert("Game Over!");
}
}
}, 500)
Here is the playSimon() function:
function playSimon() {
setTimeout(function () {
color = Math.floor(Math.random() * 4);
if (color == 0) {
correctAnswer.push(0);
$('#redButton').addClass('lightOn');
setTimeout(function () {
$('#redButton').removeClass('lightOn');
}, 500);
}
else if (color == 1) {
correctAnswer.push(1);
$('#blueButton').addClass('lightOn');
setTimeout(function () {
$('#blueButton').removeClass('lightOn');
}, 500);
}
else if (color == 2) {
correctAnswer.push(2);
$('#greenButton').addClass('lightOn');
setTimeout(function () {
$('#greenButton').removeClass('lightOn');
}, 500);
}
else if (color == 3) {
correctAnswer.push(3);
$('#yellowButton').addClass('lightOn');
setTimeout(function () {
$('#yellowButton').removeClass('lightOn');
}, 500);
}
i++;
if (i <= round) {
playSimon();
}
else {
makeGuess();
}
}, 700);
}
Why is it alerting Game Over instantly on round 2?
Because you are binding the click events multiple times:
function makeGuess() {
$('#redButton').click(function() {
yourAnswer.push(0);
});
$('#blueButton').click(function() {
yourAnswer.push(1);
});
$('#greenButton').click(function() {
yourAnswer.push(2);
});
$('#yellowButton').click(function() {
yourAnswer.push(3);
});
...
}
Each time makeGuess() is called, the buttons are bound yet another click event listener. First time it's done (first level), there's only 1 event listener so it's working correctly, but from the second level onward each buttons are bound with 2 identical click listener, and when the player click a button, the function is called twice => yourAnswer is pushed twice immediately, which result in an incorrect answer => game over.
A quick fix is to unbind all click events on the 4 buttons before binding them all again, optimally immediately before the next playSimon() is called.
if (yourString === correctString) {
alert('Correct');
round++;
yourAnswer = [];
correctAnswer = [];
yourString = "";
correctString = "";
$('#redButton').unbind( "click" );
$('#blueButton').unbind( "click" );
$('#greenButton').unbind( "click" );
$('#yellowButton').unbind( "click" );
playSimon();
} else {
alert("Game Over!");
}
JsFiddle: https://jsfiddle.net/dfk2am7e/1/
AVAVT is right, however instead of unbinding, rather just bind the event once off.
I have updated your JSFiddle and optimized your code a little bit.
https://jsfiddle.net/dfk2am7e/3/
// Run this when the page has loaded to ensure HTML is there.
$(function(){
$('#redButton').click(function() {
yourAnswer.push(0);
});
$('#blueButton').click(function() {
yourAnswer.push(1);
});
$('#greenButton').click(function() {
yourAnswer.push(2);
});
$('#yellowButton').click(function() {
yourAnswer.push(3);
});
});

Remove div after fade out animation - javascript

I'm trying to remove a div from the body AFTER an animation is completed, but at the moment looks like the remove happens right after the first iteration of the animation.
function $(el) { return document.getElementById(el); }
var divFirst = $('first');
if(divFirst)
divFirst.addEventListener("click", addSecond);
function removeSecond()
{
fadeOut();
var child = $('second');
console.log("remove called");
child.remove();
}
function addSecond()
{
console.log("addSecond called");
var aContainer = document.createElement('div');
aContainer.setAttribute('id', 'second');
aContainer.innerHTML = "Second";
aContainer.addEventListener("click", removeSecond);
document.body.appendChild(aContainer);
fadeIn();
}
function fadeIn()
{
var secondDiv = $('second');
if(secondDiv)
{
secondDiv.style.opacity ? secondDiv.style.opacity :
secondDiv.style.opacity = "0.0";
if(parseFloat(secondDiv.style.opacity) <= 1)
{
secondDiv.style.opacity = parseFloat(secondDiv.style.opacity) + 0.05;
setTimeout(fadeIn, 50);
}
}
}
function fadeOut()
{
var secondDiv = $('second');
if(secondDiv)
{
console.log(secondDiv.style.opacity);
if(parseFloat(secondDiv.style.opacity) >0 )
{
secondDiv.style.opacity = parseFloat(secondDiv.style.opacity) - 0.05;
setTimeout(fadeOut, 50);
}
}
}
Here the jsfiddle: http://jsfiddle.net/ny85ckk2/
If I remove the child.remove() call, the animation continues till the end.
Any idea?
Thanks a lot
Your fadeOut is an asynchronous operation. When you call it, it starts the fade, but then the fade continues and completes asynchronously because you're using setTimeout. So your code after callilng fadeOut runs just after it starts.
To remove the element when done, remove that code and instead remove the element in fadeOut when done:
function fadeOut()
{
var secondDiv = $('second');
if(secondDiv)
{
console.log(secondDiv.style.opacity);
if(parseFloat(secondDiv.style.opacity) >0 )
{
secondDiv.style.opacity = parseFloat(secondDiv.style.opacity) - 0.05;
setTimeout(fadeOut, 50);
}
else // Added
{ // Added
secondDiv.remove(); // Added
} // Added
}
}
Or if you want more flexibility, have fadeOut call a callback when done and remove the element in the callback; we do that by separating out the actual work of the fade from starting it:
function fadeOut(callback)
{
var secondDiv = $('second');
if (secondDiv)
{
doFade();
}
function doFade() {
if(parseFloat(secondDiv.style.opacity) >0 )
{
secondDiv.style.opacity = parseFloat(secondDiv.style.opacity) - 0.05;
setTimeout(doFade, 50);
}
else if (callback)
{
callback(secondDiv);
}
}
}
Usage:
function removeSecond()
{
fadeOut(function(div) {
div.remove();
});
}
Fiddle

Autostart jQuery slider

I'm using a script that animates on click left or right to the next div. It currently works fine but I'm looking to add two features to it. I need it to repeat back to the first slide if it is clicked passed the last slide and go to the last slide if click back from the first slide. Also, I'm interested in getting this to autostart on page load.
I've tried wrapping the clicks in a function and setting a setTimeout but it didn't seem to work. The animation is currently using CSS.
Here's the current JS:
<script>
jQuery(document).ready(function() {
var boxes = jQuery(".box").get(),
current = 0;
jQuery('.right').click(function () {
if (current == (-boxes.length + 1)){
} else {
current--;
updateBoxes();
}
console.log(-boxes.length + 1);
console.log(current);
});
jQuery('.left').click(function () {
if (current === 0){
} else{
current++;
updateBoxes();
}
});
function updateBoxes() {
for (var i = current; i < (boxes.length + current); i++) {
boxes[i - current].style.left = (i * 100 + 50) + "%";
}
}
});
</script>
Let me know if I need a jsfiddle for a better representation. So far, I think the code is pretty straightforward to animate on click.
Thanks.
Try
jQuery(document).ready(function () {
var boxes = jQuery(".box").get(),
current = 0,
timer;
jQuery('.right').click(function () {
if (current == (-boxes.length + 1)) {
current = 0;
} else {
current--;
}
updateBoxes();
}).click(); //initialize the view
jQuery('.left').click(function () {
if (current === 0) {
current = -boxes.length + 1;
} else {
current++;
}
updateBoxes();
});
function updateBoxes() {
//custom implementation for testing
console.log('show', current)
$(boxes).hide().eq(-current).show();
autoPlay();
}
function autoPlay() {
clearTimeout(timer);
//auto play
timer = setTimeout(function () {
jQuery('.right').click();
}, 2500)
}
});
Demo: Fiddle
Here's an example based on my comment (mostly pseudocode):
$(function(){
var boxes = $('.box'),
current = 0,
timer;
// Handler responsible for animation, either from clicking or Interval
function animation(direction){
if (direction === 1) {
// Set animation properties to animate forward
} else {
// Set animation properties to animate backwards
}
if (current === 0 || current === boxes.length) {
// Adjust for first/last
}
// Handle animation here
}
// Sets/Clears interval
// Useful if you want to reset the timer when a user clicks forward/back (or "pause")
function setAutoSlider(set, duration) {
var dur = duration || 2000;
if (set === 1) {
timer = setInterval(function(){
animation(1);
}, dur);
} else {
clearInterval(timer)
}
}
// Bind click events on arrows
// We use jQuery's event binding to pass the data 0 or 1 to our handler
$('.right').on('click', 1, function(e){animation(e.data)});
$('.left').on('click', 0, function(e){animation(e.data)});
// Kick off animated slider
setAutoSlider(1, 2000);
Have fun! If you have any questions, feel free to ask!

Clear a non-global timeout launched in jQuery plug-in

I try to set a timeout on an element, fired with a jQuery plugin. This timeout is set again in the function depending on conditions. But, I want to clear this element's timeout before set another (if I relaunch the plug-in), or clear this manually.
<div id="aaa" style="top: 0; width: 100px; height: 100px; background-color: #ff0000;"></div>
Here's my code (now on http://jsfiddle.net/Ppvf9/)
$(function() {
$('#aaa').myPlugin(0);
});
(function($) {
$.fn.myPlugin = function(loops) {
loops = loops === undefined ? 0 : loops;
this.each(function() {
var el = $(this),
loop = loops,
i = 0;
if (loops === false) {
clearTimeout(el.timer);
return;
}
var animate = function() {
var hPos = 0;
hPos = (i * 10) + 'px';
el.css('margin-top', hPos);
if (i < 25) {
i++;
} else {
if (loops === 0) {
i = 0;
} else {
loop--;
if (loop === 0) {
return;
} else {
i = 0;
}
}
}
el.timer = window.setTimeout(function () {
animate();
}, 1000/25);
};
clearTimeout(el.timer);
//$('<img/>').load(function() {
// there's more here but it's not very important
animate();
//});
});
return this;
};
})(jQuery);
If I make $('#element').myPlugin();, it's launched. If I make it a second time, there's two timeout on it (see it by doing $('#aaa').myPlugin(0);
in console). And I want to be able to clear this with $('#element').myPlugin(false);.
What am I doing wrong?
EDIT :
SOLVED by setting two var to access this and $(this) here : http://jsfiddle.net/Ppvf9/2/
try saving the timeout handle as a property of the element. Or maintain a static lookup table that maps elements to their timeout handles.
Something like this:
el.timer = window.setTimeout(...);
I assume you need one timer per element. Not a single timer for all elements.

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