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How to add transition from one function to another in JavaScript?

I want to add some smooth transition or animation from the mouse enter event to the mouse leave.
JS :
/* mudar cor do logo maior */
var myImage = document.querySelector('img#logo-maior');
myImage.onmouseenter = function() {
var mySrc = myImage.getAttribute('src');
myImage.setAttribute ('src','images/type-logo-coral.png');
}
myImage.onmouseleave = function() {
var mySrc = myImage.getAttribute('src');
myImage.setAttribute ('src','images/type-logo.png');
}
HTML :
<div class="display">
<img id="modelos" src="images/modelos/1.png">
<img id="logo-maior" src="images/type-logo.png" alt="TYPE logo">
<!--
<button type="button" onclick="displayPreviousImage()">Previous</button>
<button type="button" onclick="displayNextImage()">Next</button>
-->
</div>

Use CSS Animation. Add class for each function that will trigger the animation
Try this code
css
.transition1{
animation: fadeIn1 1.5s;
-webkit-animation: fadeIn1 1.5s; ;
opacity: 1;
}
#keyframes fadeIn1{
from{
opacity: 0;
}
to{
opacity: 1;
}
}
#-webkit-keyframeskeyframes fadeIn1{
from{
opacity: 0;
}
to{
opacity: 1;
}
}
.transition2{
animation: fadeIn2 1.5s;
-webkit-animation: fadeIn2 1.5s; ;
opacity: 1;
}
#-webkit-keyframeskeyframes fadeIn2{
from{
opacity: 0;
}
to{
opacity: 1;
}
}
javascript
var myImage = document.querySelector("img#logo-maior");
myImage.onmouseenter = function() {
myImage.classList.remove("transition2");
myImage.setAttribute("class", "transition1");
myImage.setAttribute("src", "../image2.jpg");
};
myImage.onmouseleave = function() {
myImage.classList.remove("transition1");
myImage.setAttribute("class", "transition2");
myImage.setAttribute("src","../image1.jpg"
);
};
html
<div class="display">
<img
id="logo-maior"
src="../img1.jpg"
alt="TYPE logo"
/>
</div>

In your CSS code:
img:hover {
(whatever styles you want for the hovering effect)
transition: all 0.5s ease-out;
}
For more information on transitions visit: https://developer.mozilla.org/en-US/docs/Web/CSS/transition

Performance-friendly blinking effect

I'd love to add a blinking effect like this, but I think setInterval is overkill for what's mere cosmetic stuff:
jQuery(function(){
$("#watch").each(function(){
var $box = $(this);
var show = true;
setInterval(function(){
var m = moment();
$box.text(show ? m.format('H:mm') : m.format('H mm'));
show = !show;
}, 500);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src='//cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment.min.js'></script>
<div id="watch">--:--</div>
Is there a newer JavaScript API I could be using, or maybe a CSS transition?

Using the CSS provided by this answer, you can do this
jQuery(function() {
$("#watch").each(function() {
var $box = $(this);
setInterval(function() {
var m = moment();
$box.html(m.format('H') + '<span class="blink_me">:</span>' + m.format('mm'));
}, 1000);
});
});
.blink_me {
animation: blinker 1s infinite;
}
#keyframes blinker {
50% {
opacity: 0;
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src='//cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment.min.js'></script>
<div id="watch">--:--</div>

For the records, this is the final CSS I wrote based on George's answer:
section {
font-size: 5rem;
}
.stop-watch span {
animation: blink 1s infinite;
}
#keyframes blink{
0% {
animation-timing-function: steps(1, end);
opacity: 1;
}
50% {
animation-timing-function: steps(1, end);
opacity: 0;
}
}
<section class="stop-watch">
1<span>:</span>59
</section>

Using Angular promises with ng-show

I have an Angular SPA, which loads a bunch of data from the backend and displays them in, let's say tables. In order to provide a better user experience, I'm hiding those tables while the data is loaded and display a spinner. So I end up writing code like this:
Template:
<div class="row">
<div class="col-md-12">
<spinner ng-show="ctrl.loading.unicorns"></spinner>
<ul ng-hide="ctrl.loading.unicorns">
<li ng-repeat="unicorn in ctrl.unicorns">{{ unicorn.name }}</li>
</ul>
</div>
</div>
Controller:
function unicornController() {
var ctrl = this;
ctrl.loading = {
unicorns: true
};
unicornService
.get()
.then(function(data) {
ctrl.unicorns = data;
})
.finally(function() {
ctrl.loading.unicorns = false;
});
return ctrl;
}
With one loader it's not a big deal, but when I have 3 of them in every view, it feels like the loading could be handled in a better way. I found out that promises have a $$state.status property which holds exactly this value, but afaik I should not use that as it's not part of the public API. Is there any other way to achieve this without messing around local flags?

You can either find a way to do it yourself or you can find an existing way to do it.
Here is a usefull projects that will automatically display the progress of your $http requests.
Angular loading bar
Install (npm or bower)
$ npm install angular-loading-bar
$ bower install angular-loading-bar
Include
angular.module('myApp', ['angular-loading-bar'])

If you are doing it a lot and you need to have independent loader maybe it is good idea to implement specific directive/component just for that?
Simple example with spinKit spinner.
angular.module('app', []);
angular.module('app').component('loading', {
transclude: true,
template: `
<div class="spinner" ng-show="$ctrl.loading"></div>
<ng-transclude ng-hide="$ctrl.loading"></ng-transclud>
`,
bindings: {
promise: '<'
},
controller: function() {
this.loading = false;
this.$onChanges = function() {
if (this.promise != null) {
this.loading = true;
this.promise
.then(function() {
this.loading = false;
}.bind(this));
}
}.bind(this);
}
});
angular.module('app').controller('Example', function($timeout) {
this.emitPromise = function(propName) {
this[propName] = createRandomPromise()
.then(function(result) {
this[propName + 'Result'] = result;
}.bind(this));
}.bind(this);
function createRandomPromise() {
var time = Math.round(Math.random() * 3000); // up to 3s
return $timeout(function() {
return time;
}, time);
}
});
.spinner {
width: 40px;
height: 40px;
background-color: #333;
margin: 10px auto;
-webkit-animation: sk-rotateplane 1.2s infinite ease-in-out;
animation: sk-rotateplane 1.2s infinite ease-in-out;
}
#-webkit-keyframes sk-rotateplane {
0% {
-webkit-transform: perspective(120px)
}
50% {
-webkit-transform: perspective(120px) rotateY(180deg)
}
100% {
-webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg)
}
}
#keyframes sk-rotateplane {
0% {
transform: perspective(120px) rotateX(0deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
}
50% {
transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
}
100% {
transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
-webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
}
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.js"></script>
<div ng-app="app" ng-controller="Example as Ex">
<loading promise="Ex.x">
x result = {{Ex.xResult}}
</loading>
<br>
<button type="button" ng-click="Ex.emitPromise('x')">emit x</button>
<br>
<loading promise="Ex.y">
y result = {{Ex.yResult}}
</loading>
<br>
<button type="button" ng-click="Ex.emitPromise('y')">emit y</button>
</div>
Or if you wish you can use directive to insert result to transcluded scope:
angular.module('app', []);
angular.module('app').directive('loading', function($parse) {
return {
restrict: 'E',
transclude: true,
scope: true,
template: `
<div class="spinner" ng-show="loading"></div>
<div class="target" ng-hide="loading"></div>
`,
link: function($scope, $element, $attrs, $ctrl, $transclude) {
$scope.loading = false;
var targetElem = angular.element($element[0].querySelector('.target'));
$scope.$watch(watchFn, function(promise) {
if (promise != null) {
$scope.loading = true;
promise.then(function(result) {
$scope.loading = false;
$scope.result = result;
$transclude($scope, function (content) {
targetElem.empty();
targetElem.append(content);
});
});
}
});
function watchFn() {
return $parse($attrs.promise)($scope);
}
}
};
});
angular.module('app').controller('Example', function($timeout) {
this.parentValue = 'parent Value';
this.emitPromise = function(propName) {
this[propName] = createRandomPromise();
}.bind(this);
function createRandomPromise() {
var time = Math.round(Math.random() * 3000); // up to 3s
return $timeout(function() {
return time;
}, time);
}
});
.spinner {
width: 40px;
height: 40px;
background-color: #333;
margin: 10px auto;
-webkit-animation: sk-rotateplane 1.2s infinite ease-in-out;
animation: sk-rotateplane 1.2s infinite ease-in-out;
}
#-webkit-keyframes sk-rotateplane {
0% {
-webkit-transform: perspective(120px)
}
50% {
-webkit-transform: perspective(120px) rotateY(180deg)
}
100% {
-webkit-transform: perspective(120px) rotateY(180deg) rotateX(180deg)
}
}
#keyframes sk-rotateplane {
0% {
transform: perspective(120px) rotateX(0deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
}
50% {
transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
-webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
}
100% {
transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
-webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
}
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.js"></script>
<div ng-app="app" ng-controller="Example as Ex">
<loading promise="Ex.x">
x result = {{result}}
</loading>
<br>
<button type="button" ng-click="Ex.emitPromise('x')">emit x</button>
<br>
<loading promise="Ex.y">
y result = {{result}}<br>
Ex.parentValue = {{Ex.parentValue}}
</loading>
<br>
<button type="button" ng-click="Ex.emitPromise('y')">emit y</button>
</div>

Switching tab makes CSS go crazy

Can anyone explain why this 3D works OK when you visit the page but disintegrates when you switch to another tab and then revert to the page?
But then...
... it disappears into the screen!
HTML:
<html>
<head>
<link href="styles/styles.css" rel="stylesheet" />
</head>
<body style='background-color: white; width: 900px;'>
<div style='margin: 50px auto;'>
<div id="img" style="background-image: url('img1.jpg'); width: 850px; height: 520px" />
</div>
<script src="js/libs/jquery/jquery-1.6.4.js" type="text/javascript"></script>
<script src="js/libs/jquery/jquery-slide-show-filter.js" type="text/javascript"></script>
</body>
</html>
CSS:
#container{
-webkit-perspective: 800;
width: 850px;
height: 520px;
}
#img, #s1 {
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
background-repeat: no-repeat;
}
#cube{
-webkit-transform-style: preserve-3d;
-webkit-transform: translateZ(-425px);
-webkit-backface-visibility: hidden;
width: 850px;
height: 520px;
}
#cube.enable
{
-webkit-animation: flash 0.75s ease-in-out;
-moz-animation: flash 0.75s ease-in-out;
-ms-animation: flash 0.75s ease-in-out;
-o-animation: flash 0.75s ease-in-out;
animation: flash 0.75s ease-in-out;
}
#-webkit-keyframes flash {
100% { -webkit-transform: translateZ(-425px) rotateY(90deg); }
}
Script:
var getImage = function(){
var images = ["img1.jpg", "img2.jpg", "img3.jpg"];
$.each(images, function( index, value ) {
$('<img />').attr('src', value);
});
index = 0;
return function(){
if (++index == images.length){
index = 0;
}
return images[index];
};
}();
setInterval(function(){
transform($('#img'), getImage());
}, 1000);
function transform(img, newImg){
img
.wrap('<div id="container"><div id="cube"></div>')
.css('-webkit-transform', 'translateZ(425px)');
img
.clone()
.attr('id', 's1')
.insertBefore(img)
.css('background-image', 'url("' + newImg + '")')
.css('position', 'absolute')
.css('-webkit-transform', 'rotateY(-90deg) translateZ(425px)');
PrefixedEvent($('#cube')[0], "AnimationEnd", function () {
img.unwrap().unwrap();
img.remove();
$('#s1')
.attr('id', 'img')
.css('-webkit-transform', '');
});
$('#cube').addClass('enable');
}
function PrefixedEvent(element, type, callback) {
var pfx = ["webkit", "moz", "MS", "o", ""];
for (var p = 0; p < pfx.length; p++) {
if (!pfx[p]) type = type.toLowerCase();
element.addEventListener(pfx[p]+type, callback, false);
}
}

You can fix the issue by calling transform only while the window has focus:
(function() {
var inTab= false;
$(window).blur(function() {
inTab= false;
});
$(window).focus(function() {
inTab= true;
});
setInterval(function() {
if(inTab) {
transform($('#img'), getImage());
}
}, 1000);
})();
Fiddle
Click the image to simulate the window being focused. You can then switch between tabs, and the animation will no longer break.

I think its because if you switch tab the AnimationEnd event doesn't fire so there's no clean up.

How to call a image class on a regular interval

I am having four classes inside each class a image is called
<div id="ban01" class="banner ban01">
</div>
<div id="ban02" class="banner ban02">
</div>
<div id="ban03" class="banner ban03">
</div>
<div id="ban04" class="banner ban04">
</div>
and my css class contains
.ban01 { background-image:url(../images/banner/01.jpg); }
.ban02 { background-image:url(../images/banner/02.jpg); }
.ban03 { background-image:url(../images/banner/03.jpg); }
.ban04 { background-image:url(../images/banner/04.jpg); }
and my Jquery is
$(document).ready(function () {
var totDivs = $(".banner ban03").length;
var currDiv = 0;
var myInterval = setInterval(function () {
if (currDiv > totDivs) {
clearInterval(myInterval);
return
}
$(".banner ban03").eq(currDiv).find('class').trigger("click");
currDiv++;
}, 2000);
});
how to call these classes in regular intervals sorry if i repeated the question again

html
<div id="ban01" class="banner ban01">
</div>
<div id="ban02" class="banner ban02">
</div>
<div id="ban03" class="banner ban03">
</div>
<div id="ban04" class="banner ban04">
</div>
style
.banner { height: 50px }
.ban01 { background: green }
.ban02 { background: blue }
.ban03 { background: red }
.ban04 { background: orange }
javascript
$(document).ready(function () {
var totDivs = $(".banner").length;
var currDiv = 0;
var myInterval = setInterval(change, 2000);
function change(){
$(".banner").hide().eq(currDiv).show();
currDiv = (currDiv + 1) % totDivs;
}
change();
});
http://jsfiddle.net/b2Btj/1/

Did you look on this answer... :-)
jquery-timed-change-of-item-class
Try this while I'm doing your coding. :-D
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<style type="text/css">
.a, .b, .c, .d, .e {
height: 120px;
width: 200px;
}
.a {
background-color: red;
}
.b {
background-color: green;
}
.c {
background-color: blue;
}
.d {
background-color: black;
}
.e {
background-color: yellow;
}
</style>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
</head>
<body>
<h1>Testing</h1>
<div id="test" class="a">How Are You Buddy?</div>
<script type="text/javascript">
$( document ).ready(function() {
var array = ['a','b','c','d','e'];//Here is your classes
var len = array.length;
var i=0;
function changeDivClass(d) {
$("#test").removeClass();
$("#test").addClass(array[d]);
}
setInterval(function() {
if(len>=i){
return changeDivClass(i++);
}else{
i=0;
$("#test").removeClass();
$("#test").addClass('a');
}
}, 5000);
});
</script>
</body>
</html>

#Maikay yes I want to rotate the images
Why use JavaScript to rotate image ?
This is possible with only css. Use the property : animation.
.imageRotate {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
-webkit-animation:spin 4s linear 1; // '1' for a single animation, if you need an infinite animation replace '1' by 'infinite'
-moz-animation:spin 4s linear 1;
animation:spin 4s linear 1;
}
#-moz-keyframes spin {
100% { -moz-transform: rotate(360deg); }
}
#-webkit-keyframes spin {
100% { -webkit-transform: rotate(360deg); }
}
#keyframes spin {
100% { -webkit-transform: rotate(360deg);
transform:rotate(360deg);
}
}
<div id="ban01">
<img class="imageRotate" src="http://socialtalent.co/wp-content/uploads/blog-content/so-logo.png">
</div>

not sure what exactly the click trigger on the banner element will do, but maybe this helps:
$(document).ready(function () {
var totDivs = $(".banner").length;
var currDiv = 0;
var myInterval = setInterval(function() {
if (currDiv > totDivs) {
clearInterval(myInterval);
return;
}
$(".banner").eq(currDiv).trigger("click");
currDiv++;
}, 2000);
});

what you could do is that you could run a for loop if you know the counts of the "div"
for(var count=0;count<3;count++)
{
var totDivs = $(".banner ban0"+count).length;
var currDiv = 0;
var myInterval = setInterval(function () {
if (currDiv > totDivs) {
clearInterval(myInterval);
return
}
$(".banner ban0"+count).eq(currDiv).find('class').trigger("click");
currDiv++;
}, 2000);
}
May this could solve your issue .