{"id":23052,"date":"2024-04-14T10:11:29","date_gmt":"2024-04-14T09:11:29","guid":{"rendered":"https:\/\/nelkodev.com\/blog\/directivas-v-show-y-v-if-en-vue-js\/"},"modified":"2024-06-03T17:31:01","modified_gmt":"2024-06-03T16:31:01","slug":"directivas-v-show-y-v-if-en-vue-js","status":"publish","type":"post","link":"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/","title":{"rendered":"v-show and v-if directives in Vue.js"},"content":{"rendered":"<p>In Vue.js, the v-show and v-if directives are two fundamental functionalities that allow us to show or hide HTML elements based on a condition. These directives are widely used in development with Vue.js and are an essential part of the reactive programming offered by this framework.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #ffffff;color:#ffffff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #ffffff;color:#ffffff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#%C2%BFQue_es_Vuejs\" >What is Vue.js?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#Directiva_v-show\" >v-show directive<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#Directiva_v-if\" >v-if directive<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#Cuando_usar_v-show_y_v-if\" >When to use v-show and v-if<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nelkodev.com\/en\/blog\/v-show-and-v-if-directives-in-vue-js\/#Preguntas_frecuentes\" >Frequently asked questions<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_Vuejs\"><\/span>What is Vue.js?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vue.js is a progressive JavaScript framework used to build interactive user interfaces. It is known for its ease of use and its focus on the display layer of an application. Vue.js uses a reactivity system that allows developers to update and modify the user interface efficiently and seamlessly.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Directiva_v-show\"><\/span>v-show directive<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The v-show directive is used to show or hide HTML elements based on a condition. It can be used in any HTML element and is bound to an expression that evaluates to true or false. If the expression is true, the element is displayed; if false, it is hidden.<\/p>\n<pre>\n&lt;div v-show=&quot;isVisible&quot;&gt;\n    Content displayed if isVisible is true.\n&lt;\/div&gt;\n<\/pre>\n<p>In the example above, the div will be shown if the isVisible variable is true and hidden if it is false.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Directiva_v-if\"><\/span>v-if directive<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The v-if directive is also used to show or hide HTML elements, but unlike v-show, v-if also affects the existence of the element in the DOM. If the expression bound to v-if is false, the element will be removed from the DOM; if true, the element will be added to the DOM.<\/p>\n<pre>\n&lt;div v-if=&quot;isVisible&quot;&gt;\n    Content displayed if isVisible is true.\n&lt;\/div&gt;\n<\/pre>\n<p>In this case, if isVisible is true, the div will be added to the DOM and displayed; if false, the div will be removed from the DOM and will not be visible on the page.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cuando_usar_v-show_y_v-if\"><\/span>When to use v-show and v-if<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The choice between v-show and v-if depends on the specific situation and requirements of your project. Here are some considerations:<\/p>\n<ul>\n<li>Use v-show if you need to change the visibility of an element frequently, as this directive only manipulates the &#039;display&#039; style property. of the element.<\/li>\n<li>Use v-if if you need to add or remove DOM elements based on a condition, as this directive has an impact on DOM rendering.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The v-show and v-if directives are two powerful tools in Vue.js to conditionally show or hide HTML elements. They are useful in situations where you need to control the visibility of elements based on a condition. Remember that v-show simply shows or hides the element, while v-if also affects the existence of the element in the DOM. Both directives allow you to create dynamic and responsive user interfaces in your Vue.js application.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Preguntas_frecuentes\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1. What is the difference between v-show and v-if in Vue.js?<\/p>\n<p>The main difference between v-show and v-if in Vue.js is that v-show only manipulates the &#039;display&#039; style property. of the element, while v-if also affects the existence of the element in the DOM.<\/p>\n<p>2. When should I use v-show instead of v-if in Vue.js?<\/p>\n<p>You should use v-show instead of v-if in Vue.js when you need to change the visibility of an element frequently. V-show simply shows or hides the element without affecting its existence in the DOM.<\/p>\n<p>3. When should I use v-if instead of v-show in Vue.js?<\/p>\n<p>You should use v-if instead of v-show in Vue.js when you need to add or remove DOM elements based on a condition. V-if has an impact on DOM rendering, making it suitable for cases where you need to control the existence of an element on the page.<\/p>\n<p>4. Can I combine v-show and v-if in Vue.js?<\/p>\n<p>Yes, it is possible to combine v-show and v-if in Vue.js. This can be useful in situations where you need to control both the visibility and existence of an element in the DOM.<\/p>\n<p>5. Where can I find more information about Vue.js?<\/p>\n<p>You can find more information about Vue.js in the official Vue.js documentation at <a href=\"https:\/\/vuejs.org\" target=\"_blank\" rel=\"noopener nofollow\">https:\/\/vuejs.org<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>In Vue.js, the v-show and v-if directives are two fundamental functionalities that allow us to show or hide HTML elements based on a condition. These directives are widely used in development with Vue.js and are an essential part of the reactive programming offered by this framework. What is Vue.js? Vue.js is a JavaScript framework that allows us to show and hide HTML elements based on a condition.<\/p>","protected":false},"author":1,"featured_media":23053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[420,1122],"tags":[205,563,914,913,562,796],"class_list":["post-23052","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-vuejs","tag-blog","tag-directivas","tag-v-if","tag-v-show","tag-vue-js","tag-vuejs"],"_links":{"self":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts\/23052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/comments?post=23052"}],"version-history":[{"count":0,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts\/23052\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/media\/23053"}],"wp:attachment":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/media?parent=23052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/categories?post=23052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/tags?post=23052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}