{"id":18675,"date":"2022-11-01T15:04:16","date_gmt":"2022-11-01T09:34:16","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-add-unique-class-in-randomly-position-to-the-div-with-the-same-class\/"},"modified":"2022-11-01T15:04:16","modified_gmt":"2022-11-01T09:34:16","slug":"solved-add-unique-class-in-randomly-position-to-the-div-with-the-same-class","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-add-unique-class-in-randomly-position-to-the-div-with-the-same-class\/","title":{"rendered":"[Solved] add unique class in randomly position to the div with the same class"},"content":{"rendered":"

[ad_1]
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I don’t really understood what you really want, but, here’s a solution to achieve your task when the page is loaded.<\/p>\n

So, when the page is loaded, we fetch all the div<\/code>s containing the class nprotagonistas__bg<\/code> and then randomly we’ll assign the class hover<\/code> to only one of the div<\/code>s. This will be done depending on the number<\/strong> of div<\/code>s containing the class nprotagonistas__bg<\/code> and we’ll use the built-in random<\/code> method to get a random number that will be used as the index of the selected div<\/code>(the random number is the index on the page of the div<\/code> that’s selected to get the hover<\/code> class, so reloading the page ends in getting another random div<\/code>).<\/p>\n

With all that being said, here’s a snippet to illustrate:<\/p>\n

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In the snippet, the hover<\/code>class adds a red background<\/code> to the element that has this class.<\/p>\n<\/blockquote>\n

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\/\/ waiting till the page is loaded by listening to the 'load' event on the 'window' object.\r\nwindow.addEventListener('load', function() {\r\n  \/**\r\n  * fetch all the divs with the class 'nprotagonistas__bg'.\r\n  * getting the number of these divs on the page(how many div is there).\r\n  * using the 'random' method we'll get a random number that is >= 0 and <= the number of the divs.\r\n  **\/\r\n  var divs = document.querySelectorAll('div.nprotagonistas__bg'),\r\n      l = divs.length,\r\n      r = Math.ceil(Math.random() * l) - 1;\r\n  \/\/ assign the 'hover' class to a div depending on thethe random number.\r\n  divs[r].classList.add('hover');\r\n});<\/code><\/pre>\n
.nprotagonistas__bg {\r\n  \/* just to make the divs visible on the page *\/\r\n  height: 50px;\r\n  border: 2px solid green;\r\n}\r\n.nprotagonistas__bg.hover{\r\n  background: red;\r\n}<\/code><\/pre>\n
<div class=\"nprotas\">\r\n<div class=\"container\">\r\n    <div class=\"row\">\r\n        <div class=\"col-6\">\r\n            <div class=\"nprotagonistas\">\r\n                <div class=\"nprotagonistas__bg grey\">\r\n                <\/div>\r\n                <div class=\"nprotagonistas__content lectores\">\r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n        <div class=\"col-6\">\r\n            <div class=\"nprotagonistas\">\r\n                <div class=\"nprotagonistas__bg white\">\r\n                <\/div>\r\n                <div class=\"nprotagonistas__content controladores\">\r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n        <div class=\"col-6\">\r\n            <div class=\"nprotagonistas\">\r\n                <div class=\"nprotagonistas__bg black\">\r\n                <\/div>\r\n                <div class=\"nprotagonistas__content videointercomunicacion\">\r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n        <div class=\"col-6\">\r\n            <div class=\"nprotagonistas\">\r\n                <div class=\"nprotagonistas__bg red\">\r\n                <\/div>\r\n                <div class=\"nprotagonistas__content aplicacion\">\r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div><\/code><\/pre>\n<\/div>\n<\/div>\n
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Learn more<\/a> about the random<\/code> method.<\/p>\n
Learn more<\/a> about the ceil<\/code> method.<\/p>\n
Learn more<\/a> about the addEventListener<\/code> method.<\/p>\n<\/blockquote>\n
Hope I pushed you further.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            4<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved add unique class in randomly position to the div with the same class <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] I don’t really understood what you really want, but, here’s a solution to achieve your task when the page is loaded. So, when the page is loaded, we fetch all the divs containing the class nprotagonistas__bg and then randomly we’ll assign the class hover to only one of the divs. This will be done … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[1548,346,333,388],"class_list":["post-18675","post","type-post","status-publish","format-standard","hentry","category-solved","tag-frontend","tag-html","tag-javascript","tag-jquery"],"yoast_head":"\n[Solved] add unique class in randomly position to the div with the same class - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-add-unique-class-in-randomly-position-to-the-div-with-the-same-class\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] add unique class in randomly position to the div with the same class - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] I don’t really understood what you really want, but, here’s a solution to achieve your task when the page is loaded. 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