JQuery exercise

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3,780 Kb
Views
16,192

How do I make an jquery exercise?

This project has a large grid of dynamically created boxes, and clicking on one of them will change their background to a randomly generated color. The color change will move in an expanding radius. . What is a jquery exercise? How do you make a jquery exercise? This script and codes were developed by Brian on 22 November 2022, Tuesday.

JQuery exercise Previews

JQuery exercise - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>jQuery exercise</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div class="project-wrapper"> <div class="view"></div>
</div> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

JQuery exercise - Script Codes CSS Codes

@-webkit-keyframes grow { 0% { -webkit-transform: scale(1.5, 1.5); transform: scale(1.5, 1.5); } 50% { -webkit-transform: scale(2, 2); transform: scale(2, 2); } 75% { -webkit-transform: scale(1.5, 1.5); transform: scale(1.5, 1.5); }
}
@keyframes grow { 0% { -webkit-transform: scale(1.5, 1.5); transform: scale(1.5, 1.5); } 50% { -webkit-transform: scale(2, 2); transform: scale(2, 2); } 75% { -webkit-transform: scale(1.5, 1.5); transform: scale(1.5, 1.5); }
}
html,
body { height: 100%;
}
body { /* padding: 20px; */ background: #222;
}
.project-wrapper { width: 100%; height: 100%;
}
.project-wrapper .view { width: inherit; height: inherit; background: #222; margin: 0 auto; overflow: hidden;
}
.project-wrapper .view ul li { width: 15px; height: 15px; float: left; position: relative; background: #FFC400; cursor: pointer; margin: 2.5px; border-radius: 4px;
}
.project-wrapper .view ul li:hover { -webkit-transform-origin: middle center; transform-origin: middle center; box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.5); -webkit-animation: grow .5s 1; animation: grow .5s 1; z-index: 10;
}
.project-wrapper .view ul li:hover:before { content: ""; width: 100%; height: 100%; position: absolute; top: 0; left: 0; display: block; border-radius: 4px; background: rgba(255, 255, 255, 0.5);
}

JQuery exercise - Script Codes JS Codes

var $colorBoxes = (function(){ 'use-strict'; //global variables var colorBoxes = {}, $view = $('.view'), elementWidth = 20, //must be updated if changed in the css elementHeight = 20, //must be updated if changed in the css boxesPerRow, boxesPerCol, boxCount; colorBoxes.setup = (function(){ var setup = {}; setup.getVals = function () { boxesPerRow = Math.floor( $view.width() / elementWidth); boxesPerCol = Math.floor( $view.height() / elementHeight); boxCount = boxesPerRow * boxesPerCol; }; setup.build = function () { setup.getVals(); var viewHtml, listItems = ''; for (var i = 0; i < boxCount; i += 1){ listItems += '<li></li>'; } viewHtml = '<ul>' + listItems + '</ul>'; $view.append(viewHtml); }; setup.init = function () { setup.build(); }; return setup; }()); colorBoxes.utils = (function () { var utils = {}; utils.distance = function (x1, y1, x2, y2) { var x = Math.pow( (x1 - x2), 2), y = Math.pow( (y1 - y2), 2), result = Math.floor( Math.sqrt(x + y) ); return result; }; utils.newColor = function (){ var rgb = {r:0,g:0,b:0}; $.each(rgb, function (index, value){ rgb[index] = Math.floor( Math.random() * (255) ); }); var newColor = 'rgb(' +rgb.r + ', ' + rgb.b + ", " + rgb.g + ')'; return newColor; }; return utils; }()); colorBoxes.events = (function (){ var events = {}; events.resize = function () { $(window).resize(function () { $view.html(''); colorBoxes.setup.init(); }); }; events.click = function () { $view.on('click', 'li', function(){ events.spread(this); }); }; events.spread = function (element) { var $list = $view.find('li'), $origin = $(element), originIndex = $origin.index(), originX = originIndex % boxesPerRow, originY = Math.floor( originIndex / boxesPerRow), color = colorBoxes.utils.newColor(), spreadSpeed = 20; //in ms //goes through each li and changes its color for (var i = 0; i < $list.length; i += 1) { var posX = i % boxesPerRow, posY = Math.floor(i / boxesPerRow), distance = colorBoxes.utils.distance(originX, originY, posX, posY), delay = distance * spreadSpeed; timeout(i , delay); } function timeout (index, delay) { setTimeout( function(){ $list.eq(index).css('background', color); }, delay); } }; events.init = function () { events.resize(); events.click(); }; return events; }()); colorBoxes.init = function () { colorBoxes.setup.init(); colorBoxes.events.init(); }; return colorBoxes;
}());
//document ready
$(document).ready(function(){ $colorBoxes.init();
});
JQuery exercise - Script Codes
JQuery exercise - Script Codes
Home Page Home
Developer Brian
Username brian-baum
Uploaded November 22, 2022
Rating 3
Size 3,780 Kb
Views 16,192
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