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Memory Pairs Game in JavaScript

HTML Code For Memory Pairs Game in JavaScript

Here is all the HTML Code for the Memory Pairs Game. Let’s copy all the HTML code given below and paste it in you Index.html  file.

<div class="wrapper">
<h1>JavaScript pairs Game</h1>
<h3>Click any card to begin</h3>
<p><span id="seconds">00</span>:<span id="tens">00</span></p>
<p id ="text"></p>
<div id="container">
</div>
</div>

CSS Code

Let’s copy all the CSS code of this project and paste it in you style.css  file.

/* Variabes */
/* Mixin's */
body {
background: #82d2e5;
font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
height: 100%;
color: #fff;
text-align: center;
}
h1, h2 {
font-family: 'Roboto', sans-serif;
font-weight: 100;
font-size: 2.6em;
text-transform: uppercase;
}
h3 {
font-family: 'Roboto', sans-serif;
font-weight: 100;
font-size: 1.4em;
text-transform: uppercase;
}
#seconds, #tens {
font-size: 2em;
}
button {
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
-khtml-border-radius: 5px;
background: #82d2e5;
color: #fff;
border: solid 1px #fff;
text-decoration: none;
cursor: pointer;
font-size: 1.2em;
padding: 18px 10px;
width: 180px;
margin: 10px;
outline: none;
}
button:hover {
-webkit-transition: all 0.5s ease-in-out;
-moz-transition: all 0.5s ease-in-out;
transition: all 0.5s ease-in-out;
background: #fff;
border: solid 1px #fff;
color: #82d2e5;
}
#container {
width: 630px;
margin: 10px auto;
}
#container:after {
content: "";
display: table;
clear: both;
}
[data-view="card"] {
transform: rotateY(180deg);
width: 100px;
height: 140px;
border: solid 1px #d3cece;
border-radius: 5px;
float: left;
margin: 10px;
cursor: pointer;
background: linear-gradient(135deg, #f3f3f3 22px, #fff 22px, #fff 24px, transparent 24px, transparent 67px, #fff 67px, #fff 69px, transparent 69px), linear-gradient(225deg, #f3f3f3 22px, #fff 22px, #fff 24px, transparent 24px, transparent 67px, #fff 67px, #fff 69px, transparent 69px) 0 64px;
background-color: #f3f3f3;
background-size: 64px 128px;
}
.flipped {
transition: 0.6s;
transform-style: preserve-3d;
position: relative;
transform: rotateY(0deg);
}
.reverse {
transition: 0.6s;
transform-style: preserve-3d;
position: relative;
transform: rotateY(180deg);
}
.correct {
opacity: 0.5;
cursor: default;
transform-style: preserve-3d;
position: relative;
transform: rotateY(0deg);
}
/* Icons */
.correct[data-item="sass"], .flipped[data-item="sass"] {
background: url("https://cathydutton.co.uk/images/tech/sass.jpg") left center no-repeat #fff;
background-size: contain;
}
.correct[data-item="gulp"], .flipped[data-item="gulp"] {
background: url("https://cathydutton.co.uk/images/tech/gulp.jpg") left center no-repeat #fff;
background-size: contain;
}
.correct[data-item="grunt"], .flipped[data-item="grunt"] {
background: url("https://cathydutton.co.uk/images/tech/grunt.jpg") left center no-repeat #fff;
background-size: contain;
}
.correct[data-item="git"], .flipped[data-item="git"] {
background: url("https://cathydutton.co.uk/images/tech/git.jpg") left center no-repeat #fff;
background-size: contain;
}
.correct[data-item="css"], .flipped[data-item="css"] {
background: url("https://cathydutton.co.uk/images/tech/css.jpg") left center no-repeat #fff;
background-size: contain;
}

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JavaScript Code

var myCards = document.getElementById('container');
var resultsArray = [];
var counter = 0;
var text = document.getElementById('text');
var seconds = 00;
var tens = 00;
var appendTens = document.getElementById("tens");
var appendSeconds = document.getElementById("seconds");
var Interval ;
var images = [
'sass',
'git',
'gulp',
'css',
'grunt'
];
var clone = images.slice(0); // duplicate array
var cards = images.concat(clone); // merge to arrays
// Shufffel function
function shuffle(o){
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
}
shuffle(cards);
for (var i = 0; i < cards.length; i++) {
card = document.createElement('div');
card.dataset.item = cards[i];
card.dataset.view = "card";
myCards.appendChild(card);
card.onclick = function () {
if (this.className != 'flipped' && this.className != 'correct'){
this.className = 'flipped';
var result = this.dataset.item;
resultsArray.push(result);
clearInterval(Interval);
Interval = setInterval(startTimer, 10);
}
if (resultsArray.length > 1) {
if (resultsArray[0] === resultsArray[1]) {
check("correct");
counter ++;
win();
resultsArray = [];
} else {
check("reverse");
resultsArray = [];
}
}
}
};
var check = function(className) {
var x = document.getElementsByClassName("flipped");
setTimeout(function() {
for(var i = (x.length - 1); i >= 0; i--) {
x[i].className = className;
}
},500);
}
var win = function () {
if(counter === 5) {
clearInterval(Interval);
text.innerHTML = "Your time was " + seconds + ":" + tens;
}
}
function startTimer () {
tens++;
if(tens < 9){
appendTens.innerHTML = "0" + tens;
}
if (tens > 9){
appendTens.innerHTML = tens;
}
if (tens > 99) {
seconds++;
appendSeconds.innerHTML = "0" + seconds;
tens = 0;
appendTens.innerHTML = "0" + 0;
}
if (seconds > 9){
appendSeconds.innerHTML = seconds;
}
}

Final Output