{"id":2620,"date":"2012-04-26T13:20:16","date_gmt":"2012-04-26T13:20:16","guid":{"rendered":"https:\/\/www.jose-aguilar.com\/blog\/?p=2620"},"modified":"2012-08-26T16:36:04","modified_gmt":"2012-08-26T16:36:04","slug":"cambiar-el-tipo-del-input-con-jquery","status":"publish","type":"post","link":"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/","title":{"rendered":"Cambiar el tipo del input con jQuery"},"content":{"rendered":"<p><a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft  wp-image-4233\" title=\"jquery\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery-150x150.png\" alt=\"\" width=\"120\" height=\"120\" srcset=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery-150x150.png 150w, https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery-80x80.png 80w, https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery-180x180.png 180w, https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png 256w\" sizes=\"auto, (max-width: 120px) 100vw, 120px\" \/><\/a>En ocasiones especiales tenemos que realizar funcionalidades tan detalladas que jam\u00e1s se te hubieran cruzado por la cabeza.<\/p>\n<p>En este art\u00edculo vamos a explicar como cambiar el tipo de un campo de texto o type=\u00bbtext\u00bb a campo de tipo contrase\u00f1o o de type=\u00bbpassword\u00bb utilizando la tecnolog\u00eda jQuery.<\/p>\n<p>En el ejemplo que vamos a ilustrar vamos a tener un campo para escribir nuestra contrase\u00f1a. En principio, lo mostraremos como campo de tipo texto pero cuando hagan click o se situen con el cursor en dicho campo cambiaremos el tipo a password para evitar que terceros vean la contrase\u00f1a que escribimos en el caso de que estuvieran presentes.<\/p>\n<p>Para conseguir este efecto lo primero que haremos ser\u00e1 incluir en nuestre &lt;head&gt; la librer\u00eda jQuery y los scripts necesarios para realizar el efecto.<\/p>\n<pre>&lt;script language=\"javascript\"&gt;\r\n$(document).ready(function(){\r\n\u00a0\u00a0 \u00a0$(\"input#contrasena\").focus(function(){\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).val('');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).get(0).type = 'password';\r\n\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0 \u00a0$(\"input#contrasena\").click(function(){\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).val('');\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).get(0).type = 'password';\r\n\u00a0\u00a0 \u00a0});\r\n\r\n\u00a0\u00a0 \u00a0$(\"input#contrasena\").focusout(function(){\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0var value = $(this).val();\r\n\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0if(value == '') {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).get(0).type = 'text';\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).val($(this).attr('default'));\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0});\r\n});\r\n&lt;\/script&gt;<\/pre>\n<p>Como vemos, el documento est\u00e1 a la espera de que alguien se si situe o haga click en el campo con id=\u00bbcontrasena\u00bb para cambiar el tipo de campo antes de que empiece a escribir.<\/p>\n<p>Vayamos por partes:<\/p>\n<pre>$(\"input#contrasena\").focus(function(){\r\n\u00a0\u00a0 \u00a0$(this).val('');\r\n\u00a0\u00a0 \u00a0$(this).get(0).type = 'password';\r\n});<\/pre>\n<p>En el c\u00f3digo anterior, tras situarse en el campo con id=\u00bbcontrasena\u00bb, borramos su contenido por defecto y cambiamos el type del input a \u00abpassword\u00bb.<\/p>\n<pre>$(\"input#contrasena\").click(function(){\r\n\u00a0\u00a0 \u00a0 $(this).val('');\r\n\u00a0\u00a0 \u00a0 $(this).get(0).type = 'password';\r\n});<\/pre>\n<p>En el c\u00f3digo anterior, tras hacer click en el campo con id=\u00bbcontrasena\u00bb, borramos su contenido por defecto y cambiamos el type del input a \u00abpassword\u00bb.<\/p>\n<pre>$(\"input#contrasena\").focusout(function(){\r\n\u00a0\u00a0 \u00a0var value = $(this).val();\r\n\r\n\u00a0\u00a0 \u00a0if(value == '') {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0$(this).get(0).type = 'text';\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0  $(this).val($(this).attr('default'));\r\n\u00a0\u00a0 \u00a0}\r\n});<\/pre>\n<p>Y por \u00faltimo, en el c\u00f3digo anterior, tras salirnos del campo con id=\u00bbcontrasena\u00bb, obtenemos su valor o value y comprobamos si no hay nada para cambiar el type a \u00abtext\u00bb y a\u00f1adirle su contenido por defecto.<\/p>\n<p>En nuestro &lt;body&gt; tendremos el siguiente c\u00f3digo HTML:<\/p>\n<pre>&lt;input type=\"text\" name=\"contrasena\" id=\"contrasena\" value=\"Escribe aqui tu contrase\u00f1a\" default=\"Escribe aqui tu contrase\u00f1a\" size=\"50\" \/&gt;<\/pre>\n<p><a href=\"https:\/\/www.jose-aguilar.com\/scripts\/jquery\/change-type-input\/\" target=\"_blank\">Ver ejemplo en funcionamiento<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En ocasiones especiales tenemos que realizar funcionalidades tan detalladas que jam\u00e1s se te hubieran cruzado por la cabeza. En este art\u00edculo vamos a explicar como cambiar el tipo de un campo de texto o type=\u00bbtext\u00bb a campo de tipo contrase\u00f1o o de type=\u00bbpassword\u00bb utilizando la tecnolog\u00eda jQuery. En el ejemplo que vamos a ilustrar vamos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4233,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[79,64],"class_list":["post-2620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jquery","tag-inputs","tag-password"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cambiar el tipo del input 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=\"Cambiar el tipo del input con jQuery - Jose Aguilar Blog\" \/>\n<meta property=\"og:description\" content=\"En ocasiones especiales tenemos que realizar funcionalidades tan detalladas que jam\u00e1s se te hubieran cruzado por la cabeza. En este art\u00edculo vamos a explicar como cambiar el tipo de un campo de texto o type=\u00bbtext\u00bb a campo de tipo contrase\u00f1o o de type=\u00bbpassword\u00bb utilizando la tecnolog\u00eda jQuery. En el ejemplo que vamos a ilustrar vamos [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/\" \/>\n<meta property=\"og:site_name\" content=\"Jose Aguilar Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/joseaguilarblog\" \/>\n<meta property=\"article:published_time\" content=\"2012-04-26T13:20:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2012-08-26T16:36:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png\" \/>\n\t<meta property=\"og:image:width\" content=\"256\" \/>\n\t<meta property=\"og:image:height\" content=\"256\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Jose Aguilar\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@JoseAguilarBlog\" \/>\n<meta name=\"twitter:site\" content=\"@JoseAguilarBlog\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jose Aguilar\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/\",\"url\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/\",\"name\":\"Cambiar el tipo del input con jQuery - Jose Aguilar Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png\",\"datePublished\":\"2012-04-26T13:20:16+00:00\",\"dateModified\":\"2012-08-26T16:36:04+00:00\",\"author\":{\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/#\/schema\/person\/e6d485db1e1140866e95971d17105d11\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/#primaryimage\",\"url\":\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png\",\"contentUrl\":\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2012\/04\/jquery.png\",\"width\":256,\"height\":256},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/cambiar-el-tipo-del-input-con-jquery\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/www.jose-aguilar.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cambiar el tipo del input con jQuery\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/#website\",\"url\":\"https:\/\/www.jose-aguilar.com\/blog\/\",\"name\":\"Jose Aguilar Blog\",\"description\":\"Desarrollo Web con PrestaShop, WordPress, PHP, jQuery y Ajax\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.jose-aguilar.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/#\/schema\/person\/e6d485db1e1140866e95971d17105d11\",\"name\":\"Jose Aguilar\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.jose-aguilar.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/abbfef5f1d75260c549d0f2c2842bb697ba1aadff3b2836b39d2590c8a625415?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/abbfef5f1d75260c549d0f2c2842bb697ba1aadff3b2836b39d2590c8a625415?s=96&d=mm&r=g\",\"caption\":\"Jose Aguilar\"},\"description\":\"Director ejecutivo y tecnol\u00f3gico en JA Modules. 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