{"id":861,"date":"2024-07-31T07:51:26","date_gmt":"2024-07-31T05:51:26","guid":{"rendered":"https:\/\/blog.sutilweb.eu\/?page_id=861"},"modified":"2024-07-31T07:51:26","modified_gmt":"2024-07-31T05:51:26","slug":"002-bom-metodos","status":"publish","type":"page","link":"https:\/\/sutilweb.eu\/index.php\/lenguajes\/javascript\/javascript-practico\/14-bom-browswer-object-model\/002-bom-metodos\/","title":{"rendered":"002. BOM: M\u00e9todos"},"content":{"rendered":"\n

En este cap\u00edtulo vamos a ver algunos m\u00e9todos importantes del BOM<\/strong>.<\/p>\n\n\n\n\n\n\n\n

alert(), confirm() y prompt()<\/h2>\n\n\n\n

En su momento vimos algunos de ellos, como son alert()<\/em><\/strong>, confirm()<\/em><\/strong> y prompt()<\/em><\/strong>.<\/p>\n\n\n\n

Ya vimos que window.alert()<\/em><\/strong> nos va a mandar una alerta<\/strong>, la cual se compone de un mensaje de texto y un bot\u00f3n de aceptar, un window.confirm()<\/em><\/strong> es una confirmaci\u00f3n, que nos manda un mensaje y un bot\u00f3n de aceptar y cancelar, lo que significa que podemos almacenar dicha confirmaci\u00f3n y la cancelaci\u00f3n en una variable, y dicha variable validar\u00e1 a true<\/em><\/strong> si le damos a aceptar, y a false<\/em><\/strong> si le damos a cancelar. Y finalmente est\u00e1 el prompt()<\/em><\/strong> o aviso<\/strong>, que es un mensaje de texto con su bot\u00f3n de aceptar y cancelar, por ende puede validar a true<\/em><\/strong> o false<\/em><\/strong>, y que adicionalmente agrega un input<\/em><\/strong> en el cual el usuario puede escribir cualquier cosa, y si guardamos la variable en un prompt<\/em><\/strong>, se va a almacenar el valor que el usuario est\u00e9 digitando.<\/p>\n\n\n\n

\n

Nota<\/strong>: todo lo que cuelga de window<\/strong>, no es necesario poner la palabra window<\/strong> delante.<\/p>\n<\/blockquote>\n\n\n\n

Ventanas emergentes<\/h2>\n\n\n\n

Para ello tenemos los m\u00e9todos open()<\/em><\/strong>, close()<\/em><\/strong> y print()<\/em><\/strong>. Veamos un ejm para ver su funcionamiento.<\/p>\n\n\n\n

Ejm<\/strong><\/p>\n\n\n\n

<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>M\u00e9todos del BOM<\/title>\n  <\/head>\n\n<body>\n  <h1>M\u00e9todos del BOM<\/h1>\n  <button id=\"abrir-ventana\">Abrir ventana<\/button>\n  <br><br>\n  <button id=\"cerrar-ventana\">Cerrar ventana<\/button>\n  <br><br>\n  <button id=\"imprimir-ventana\">Imprimir ventana<\/button>\n  <br><br>\n\n  <script>\n   const $btnAbrir = document.getElementById(\"abrir-ventana\"),\n   $btnCerrar = document.getElementById(\"cerrar-ventana\"),\n   $btnImprimir = document.getElementById(\"imprimir-ventana\");\n\n   let ventana = undefined;\n\n   \/\/ Seleccionar un listener a cada bot\u00f3n\n   $btnAbrir.addEventListener(\"click\", e => {\n    ventana = window.open(\"https:\/\/sutilweb.eu\");\n    \/\/ No es necesario poner la palabra window\n   })\n\n   $btnCerrar.addEventListener(\"click\", e => {\n    ventana.close();\n   })\n\n   $btnImprimir.addEventListener(\"click\", e => {\n    window.print();\n   })\n  <\/script>\n<\/body>\n<\/html><\/pre>\n","protected":false},"excerpt":{"rendered":"
En este cap\u00edtulo vamos a ver algunos m\u00e9todos importantes del BOM.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":855,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-861","page","type-page","status-publish","hentry"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"Sutil Web","author_link":"https:\/\/sutilweb.eu\/index.php\/author\/sutilweb\/"},"uagb_comment_info":0,"uagb_excerpt":"En este cap\u00edtulo vamos a ver algunos m\u00e9todos importantes del BOM.","_links":{"self":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/comments?post=861"}],"version-history":[{"count":2,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/861\/revisions"}],"predecessor-version":[{"id":863,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/861\/revisions\/863"}],"up":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/855"}],"wp:attachment":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/media?parent=861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}