{"id":136,"date":"2022-12-27T12:20:04","date_gmt":"2022-12-27T11:20:04","guid":{"rendered":"https:\/\/rising-bits.com\/?page_id=136"},"modified":"2023-04-17T11:40:11","modified_gmt":"2023-04-17T09:40:11","slug":"touppercase-tolowercase","status":"publish","type":"page","link":"https:\/\/rising-bits.com\/en\/tools\/touppercase-tolowercase\/","title":{"rendered":"ToUppercase \/ ToLowercase"},"content":{"rendered":"<textarea rows=\"4\" cols=\"50\" id=\"stringInput\" placeholder=\"Write or paste your content here\"><\/textarea>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" onclick=\"document.getElementById('stringInput').value = toUpper(document.getElementById('stringInput').value)\">ToUppercase<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" onclick=\"document.getElementById('stringInput').value = toLower(document.getElementById('stringInput').value)\">ToLowercase<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" onclick=\"copy(document.getElementById('stringInput'))\">To clipboard<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" onclick=\"document.getElementById('stringInput').value = ''\">Clear<\/a><\/div>\n<\/div>\n\n\n\n<script>\nconst toUpper = (s) => s.toString().toUpperCase()\nconst toLower = (s) => s.toString().toLowerCase()\nconst copy = (input) => {\n    input.select()\n    input.setSelectionRange(0, 99999)\n    navigator.clipboard.writeText(input.value)\n    window.getSelection().removeAllRanges()\n}\n<\/script>\n\n\n\n<h2 class=\"wp-block-heading top1em\">Vom Schreibmaschinenzeitalter bis zur Programmierung: Der Ursprung von toUppercase() und toLowerCase()<\/h2>\n\n\n\n<p>Die Idee der Umwandlung von Buchstaben in Gro\u00dfbuchstaben und Kleinbuchstaben stammt jedoch aus der Schreibmaschinenzeit. Schreibmaschinen hatten nur eine begrenzte Anzahl von Tasten, so dass nicht alle Buchstaben und Zeichen auf der Tastatur vorhanden waren. Daher musste man oft die Shift-Taste oder die Umschalttaste dr\u00fccken, um bestimmte Buchstaben in Gro\u00dfbuchstaben zu schreiben. Die Idee wurde dann in den Computerzeitalter \u00fcbernommen, wo diese Methoden heute in vielen Programmiersprachen wie Java, Python, C# und anderen verf\u00fcgbar sind.<\/p>\n\n\n\n<p>In der heutigen Zeit sind diese Methoden sehr n\u00fctzlich, da sie uns erm\u00f6glichen, Strings in einem einheitlichen Format zu speichern und zu vergleichen. Zum Beispiel k\u00f6nnen wir sicherstellen, dass der Benutzernamen bei der Anmeldung in einer Anwendung unabh\u00e4ngig von der Eingabe des Benutzers korrekt verglichen werden, indem wir beide Strings in Kleinbuchstaben oder Gro\u00dfbuchstaben umwandeln.<\/p>","protected":false},"excerpt":{"rendered":"<p>Vom Schreibmaschinenzeitalter bis zur Programmierung: Der Ursprung von toUppercase() und toLowerCase() Die Idee der Umwandlung von Buchstaben in Gro\u00dfbuchstaben und [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":158,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"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-136","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/pages\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/comments?post=136"}],"version-history":[{"count":23,"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/pages\/136\/revisions"}],"predecessor-version":[{"id":649,"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/pages\/136\/revisions\/649"}],"up":[{"embeddable":true,"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/pages\/158"}],"wp:attachment":[{"href":"https:\/\/rising-bits.com\/en\/wp-json\/wp\/v2\/media?parent=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}