{"id":5540,"date":"2012-12-17T20:11:18","date_gmt":"2012-12-17T20:11:18","guid":{"rendered":"https:\/\/www.jose-aguilar.com\/blog\/?p=5540"},"modified":"2019-10-04T10:58:44","modified_gmt":"2019-10-04T10:58:44","slug":"calculadora-con-jquery","status":"publish","type":"post","link":"https:\/\/www.jose-aguilar.com\/blog\/calculadora-con-jquery\/","title":{"rendered":"Calculadora con jQuery"},"content":{"rendered":"<p>En este art\u00edculo vamos a ver como crear una calculadora r\u00e1pida y f\u00e1cilmente empleando para ello jQuery y CSS3, adem\u00e1s de HTML mostr\u00e1ndose con el siguiente aspecto:<\/p>\n<p><a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/12\/calc.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5590\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/12\/calc.png\" alt=\"calc\" width=\"497\" height=\"575\" srcset=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/12\/calc.png 497w, https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/12\/calc-259x300.png 259w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/a><\/p>\n<pre>&lt;div class=\"content\"&gt;\r\n\u00a0\u00a0 \u00a0&lt;div class=\"calculator\"&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;div class=\"screen\"&gt;&lt;\/div&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;input type=\"hidden\" value=\"\" class=\"outcome\" \/&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;ul class=\"buttons\"&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li class=\"clear\"&gt;&lt;a&gt;C&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"-\" class=\"val\"&gt;&amp;plusmn;&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"\/\" class=\"val\"&gt;&amp;divide;&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"*\" class=\"val\"&gt;&amp;times;&lt;\/a&gt;&lt;\/li&gt;\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;li&gt;&lt;a href=\"7\" class=\"val\"&gt;7&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &lt;li&gt;&lt;a href=\"8\" class=\"val\"&gt;8&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"9\" class=\"val\"&gt;9&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"-\" class=\"val\"&gt;-&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"4\" class=\"val\"&gt;4&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"5\" class=\"val\"&gt;5&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"6\" class=\"val\"&gt;6&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"+\" class=\"val\"&gt;+&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"1\" class=\"val\"&gt;1&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"2\" class=\"val\"&gt;2&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"3\" class=\"val\"&gt;3&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a class=\"equal tall\"&gt;=&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\"0\" class=\"val wide shift\"&gt;0&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li&gt;&lt;a href=\".\" class=\"val shift\"&gt;.&lt;\/a&gt;&lt;\/li&gt;\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;\/ul&gt;\r\n\u00a0\u00a0 \u00a0&lt;\/div&gt;\r\n&lt;\/div&gt;<\/pre>\n<p>Necesitaremos incorporar una hoja de estilos con las siguientes clases:<\/p>\n<pre>.content {\r\n\u00a0\u00a0 \u00a0width:480px;\r\n\u00a0\u00a0 \u00a0margin:20px auto 0;\r\n}\r\n\r\n.calculator {\r\n\u00a0\u00a0 \u00a0width:480px;\r\n\u00a0\u00a0 \u00a0height:auto;\r\n\u00a0\u00a0 \u00a0padding:10px 0;\r\n\u00a0\u00a0 \u00a0margin: auto;\r\n\u00a0\u00a0 \u00a0background:#232323;\r\n\u00a0\u00a0 \u00a0border:#000 1px solid;\r\n\u00a0\u00a0 \u00a0border-radius:7px;\r\n\u00a0\u00a0 \u00a0-webkit-border-radius:7px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-border-radius:7px;\r\n\u00a0\u00a0\u00a0 \u00a0box-shadow:rgba(0,0,0,0.4) 0px 2px 5px, inset rgba(255,255,255,0.9) 0px 1px 1px -1px;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-box-shadow:rgba(0,0,0,0.4) 0px 2px 5px, inset rgba(255,255,255,0.9) 0px 1px 1px -1px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-box-shadow:rgba(0,0,0,0.4) 0px 2px 5px, inset rgba(255,255,255,0.9) 0px 1px 1px -1px;\r\n\u00a0\u00a0\u00a0 \u00a0background-image:-moz-linear-gradient(top, #333333, #1f1f1f);\r\n\u00a0 \u00a0\u00a0 \u00a0background-image:-webkit-linear-gradient(top, #333333, #1f1f1f);\r\n\u00a0 \u00a0\u00a0\u00a0 \u00a0background-image:linear-gradient(top, #333333, #1f1f1f);\r\n\u00a0\u00a0\u00a0 \u00a0overflow: hidden;\r\n\u00a0\u00a0\u00a0 \u00a0text-align: center;\r\n}\r\n\r\n.screen {\r\n\u00a0\u00a0\u00a0 \u00a0width:424px;\r\n\u00a0\u00a0\u00a0 \u00a0height:93px;\r\n\u00a0\u00a0 \u00a0margin: 12px auto 30px;\r\n\u00a0\u00a0\u00a0 \u00a0padding:15px 20px;\r\n\u00a0\u00a0\u00a0 \u00a0color:#c0c0c0;\r\n\u00a0\u00a0\u00a0 \u00a0text-align: right;\r\n\u00a0\u00a0\u00a0 \u00a0font-size: 3em;\r\n\u00a0\u00a0\u00a0 \u00a0letter-spacing: 3px;\r\n\u00a0\u00a0\u00a0 \u00a0overflow:hidden;\r\n\u00a0\u00a0\u00a0 \u00a0border:#000 1px solid;\r\n\u00a0\u00a0\u00a0 \u00a0border-radius:7px;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-border-radius:7px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-border-radius:7px;\r\n\u00a0\u00a0\u00a0 \u00a0box-shadow:inset rgba(0,0,0,1) 0px 1px 4px, inset rgba(225,225,225,0.3) 0px -2px 4px -2px;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-box-shadow:inset rgba(0,0,0,1) 0px 1px 4px, inset rgba(225,225,225,0.3) 0px -2px 4px -2px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-box-shadow:inset rgba(0,0,0,1) 0px 1px 4px, inset rgba(225,225,225,0.3) 0px -2px 4px -2px;\r\n\u00a0\u00a0\u00a0 \u00a0background-image: -moz-linear-gradient(top, #3e3e3e 0%, #303030 100%);\r\n\u00a0 \u00a0\u00a0 \u00a0background-image: -webkit-linear-gradient(top, #3e3e3e 0%, #303030 100%);\r\n\u00a0 \u00a0\u00a0 \u00a0background-image: linear-gradient(top, #3e3e3e 0%, #303030 100%);\r\n\u00a0\u00a0\u00a0 \u00a0-moz-box-sizing:border-box;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-box-sizing:border-box;\r\n\u00a0\u00a0\u00a0 \u00a0box-sizing:border-box;\r\n}\r\n\r\n.buttons {\r\n\u00a0\u00a0\u00a0 \u00a0padding:0;\r\n\u00a0\u00a0\u00a0 \u00a0width:423px;\r\n\u00a0\u00a0\u00a0 \u00a0margin:auto;\r\n\u00a0\u00a0\u00a0 \u00a0overflow: hidden;\r\n\u00a0\u00a0\u00a0 \u00a0list-style: none;\r\n}\r\n.buttons li {\r\n\u00a0\u00a0\u00a0 \u00a0display:inline;\r\n\u00a0\u00a0\u00a0 \u00a0float:left;\r\n\u00a0\u00a0\u00a0 \u00a0padding:0px;\r\n\u00a0\u00a0\u00a0 \u00a0margin-right:13px;\r\n\u00a0\u00a0\u00a0 \u00a0margin-bottom:10px;\r\n}\r\n.buttons li:nth-child(4n) {\r\n\u00a0\u00a0\u00a0 \u00a0margin-right:0;\r\n}\r\n\r\n.buttons a{\r\n\u00a0\u00a0\u00a0 \u00a0display:block;\r\n\u00a0\u00a0\u00a0 \u00a0width:95px;\r\n\u00a0\u00a0\u00a0 \u00a0height:68px;\r\n\u00a0\u00a0\u00a0 \u00a0padding:18px 0 12px;\r\n\u00a0\u00a0\u00a0 \u00a0color:#c0c0c0 !important;\r\n\u00a0\u00a0\u00a0 \u00a0font-family: \"Myriad Pro\", Arial, sans-serif;\r\n\u00a0\u00a0\u00a0 \u00a0font-size:1.6em;\r\n\u00a0\u00a0\u00a0 \u00a0font-weight: 500;\r\n\u00a0\u00a0 \u00a0letter-spacing: -2px;\r\n\u00a0\u00a0 \u00a0background-color:#2f2f2f;\r\n\u00a0\u00a0\u00a0 \u00a0border: #000 1px solid;\r\n\u00a0\u00a0\u00a0 \u00a0border-radius:5px;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-border-radius:5px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-border-radius:5px;\r\n\u00a0\u00a0\u00a0 \u00a0text-align: center;\r\n\u00a0\u00a0\u00a0 \u00a0text-decoration: none;\r\n\u00a0\u00a0 \u00a0text-shadow:#000 0px -1px 0px;\r\n\u00a0\u00a0\u00a0 \u00a0box-shadow: inset rgba(255,255,255,0.1) 0px 1px 0px, inset rgba(0,0,0,0.2) 0px -2px 2px;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-box-shadow: inset rgba(255,255,255,0.1) 0px 1px 0px, inset rgba(0,0,0,0.2) 0px -2px 2px;\r\n\u00a0\u00a0\u00a0 \u00a0-moz-box-shadow: inset rgba(255,255,255,0.1) 0px 1px 0px, inset rgba(0,0,0,0.2) 0px -2px 2px;\r\n\u00a0\u00a0 \u00a0background-image:-moz-linear-gradient(top, #363636 0%, #313234 40%, #2f2f2f 100%);\r\n\u00a0 \u00a0\u00a0 \u00a0background-image:-webkit-linear-gradient(top, #363636 0%, #313234 40%, #2f2f2f 100%);\r\n\u00a0 \u00a0\u00a0\u00a0 \u00a0background-image:linear-gradient(top, #363636 0%, #313234 40%, #2f2f2f 100%);\r\n\u00a0\u00a0\u00a0 \u00a0-moz-box-sizing:border-box;\r\n\u00a0\u00a0\u00a0 \u00a0-webkit-box-sizing:border-box;\r\n\u00a0\u00a0\u00a0 \u00a0box-sizing:border-box;\r\n\u00a0\u00a0\u00a0 \u00a0cursor: pointer;\r\n}\r\n.buttons a:active{\r\n\u00a0\u00a0\u00a0 \u00a0box-shadow: inset rgba(0,0,0,0.5) 0px 2px 8px;\r\n\u00a0\u00a0\u00a0 \u00a0background-image:-moz-linear-gradient(top, #2f2f2f 0%, #363636 100%);\r\n\u00a0 \u00a0\u00a0 \u00a0background-image:-webkit-linear-gradient(top, #2f2f2f 0%, #363636 100%);\r\n\u00a0 \u00a0\u00a0\u00a0 \u00a0background-image:linear-gradient(top, #2f2f2f 0%, #363636 100%);\r\n}\r\n.tall{height:151px !important;}\r\n.wide{width:205px !important;}\r\n.shift{margin-top:-78px;}\r\n\r\n.ctrls{\r\n\u00a0list-style: none;\r\n\u00a0margin:5px 0 0 20px;\r\n\u00a0padding:0;\r\n\u00a0position: absolute;\r\n}\r\n.ctrls li{\r\n\u00a0float:left;\r\n\u00a0display:inline;\r\n}\r\n.ctrls li a{\r\n\u00a0display: block;\r\n\u00a0width:18px;\r\n\u00a0height:18px;\r\n\u00a0margin-right:10px;\r\n\u00a0border-radius:100%;\r\n\u00a0box-shadow:rgba(255,255,255,0.3) 0px 0px 1px, inset rgba(0,0,0,1) 0px 1px 2px 1px;\r\n\u00a0background-image: -moz-radial-gradient( 9px -4px, #FFF 0px, #fff 2px, rgba(255,255,255,0) 4px), -moz-linear-gradient(bottom, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);\r\n\u00a0background-image: -webkit-radial-gradient( 9px -4px, #FFF 0px, #fff 2px, rgba(255,255,255,0) 4px), -webkit-linear-gradient(bottom, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);\r\n\u00a0background-image: radial-gradient( 9px -4px, #FFF 0px, #fff 2px, rgba(255,255,255,0) 4px), linear-gradient(bottom, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);\r\n}<\/pre>\n<p>Y antes de la etiqueta de cierre del &lt;body&gt; deberemos a\u00f1dir la librer\u00eda jQuery y las funciones de la calculadora:<\/p>\n<pre>&lt;script src=\"\/\/ajax.googleapis.com\/ajax\/libs\/jquery\/1.8.3\/jquery.min.js\"&gt;&lt;\/script&gt;\r\n&lt;script&gt;\r\n$(function(){\r\n\u00a0\u00a0 \u00a0$(\".val\").click(function(e){\r\n\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0e.preventDefault();\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0var a = $(this).attr(\"href\");\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".screen\").append(a);\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".outcome\").val($(\".outcome\").val() + a);\r\n\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0\u00a0 \u00a0$(\".equal\").click(function(){\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".outcome\").val(eval($(\".outcome\").val()));\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".screen\").html(eval($(\".outcome\").val()));\r\n\u00a0\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0\u00a0 \u00a0$(\".clear\").click(function(){\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".outcome\").val(\"\");\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".screen\").html(\"\");\r\n\u00a0\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0\u00a0 \u00a0$(\".min\").click(function(){\r\n\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".cal\").stop().animate({width: \"0px\", height: \"0px\", marginLeft: \"700px\", marginTop: \"1000px\"}, 500);\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0setTimeout(function(){$(\".cal\").css(\"display\", \"none\")}, 600);\r\n\u00a0\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0\u00a0 \u00a0$(\".close\").click(function(){\r\n\u00a0 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(\".cal\").css(\"display\", \"none\");\r\n\u00a0\u00a0\u00a0 \u00a0})\r\n})\r\n\r\n&lt;\/script&gt;<\/pre>\n<p><a href=\" https:\/\/www.jose-aguilar.com\/scripts\/jquery\/calculadora\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ver el ejemplo en funcionamiento<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>En este art\u00edculo vamos a ver como crear una calculadora r\u00e1pida y f\u00e1cilmente empleando para ello jQuery y CSS3, adem\u00e1s de HTML mostr\u00e1ndose con el siguiente aspecto: &lt;div class=\u00bbcontent\u00bb&gt; \u00a0\u00a0 \u00a0&lt;div class=\u00bbcalculator\u00bb&gt; \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;div class=\u00bbscreen\u00bb&gt;&lt;\/div&gt; \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;input type=\u00bbhidden\u00bb value=\u00bb\u00bb class=\u00bboutcome\u00bb \/&gt; \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;ul class=\u00bbbuttons\u00bb&gt; \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0&lt;li class=\u00bbclear\u00bb&gt;&lt;a&gt;C&lt;\/a&gt;&lt;\/li&gt; \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5590,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,12,5],"tags":[82,167],"class_list":["post-5540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-css","category-html","category-jquery","tag-calculadoras","tag-eventos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Calculadora con jQuery - Jose Aguilar Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calculadora con jQuery - Jose Aguilar Blog\" \/>\n<meta property=\"og:description\" content=\"En este art\u00edculo vamos a ver como 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