{"id":255794,"date":"2026-07-27T07:16:53","date_gmt":"2026-07-27T07:16:53","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/building-a-random-password-generator-javascript-dom-tutorial\/"},"modified":"2026-07-27T07:16:53","modified_gmt":"2026-07-27T07:16:53","slug":"building-a-random-password-generator-javascript-dom-tutorial","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/building-a-random-password-generator-javascript-dom-tutorial\/","title":{"rendered":"Building a Random Password Generator | JavaScript DOM Tutorial"},"content":{"rendered":"<div class=\"youtubomatic-video-container\"><iframe loading=\"lazy\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/k9hK6ogfUy4?autoplay=1&#038;controls=1&#038;hl=en\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>By the end of this tutorial, you&#8217;ll have a working password generator that creates unique, strong passwords on demand.<\/p>\n<p>Code walkthrough (javascript):<br \/>\n\u2039\/\/ Generate a random password between 12-20 characters long\u203a<br \/>\n\u2039let passwordLength = Math.floor(Math.random() * (20 &#8211; 12 + 1)) + 12;\u203a<br \/>\n\u2039function generatePassword(length)\u203a<br \/>\n\u2039let characters = &#8216;ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789&#8217;;\u203a<br \/>\n\u2039let password = &#8221;;\u203a<br \/>\n\u2039for (let i = 0; i \u2039 length; i++)\u203a<br \/>\n\u2039password += characters[Math.floor(Math.random() * characters.length)];\u203a<br \/>\n\u2039return password;\u203a<br \/>\n\u2039\/\/ Create an array of button elements to generate passwords\u203a<br \/>\n\u2039let generateButton = document.createElement(&#8216;button&#8217;);\u203a<br \/>\n\u2039generateButton.textContent = &#8216;Generate Password&#8217;;\u203a<br \/>\n\u2039document.body.appendChild(generateButton);\u203a<\/p>\n<p>What it looks like: Password length input is missing \ud83d\ude16 \u2192 Password length input is now required and valid \ud83c\udf89<\/p>\n<p>Try it yourself: Try increasing the complexity of your generated passwords by adding more character types.<\/p>\n<p>This is part 33\/80 of our free Javascript &#8211; Web development basic tutorial series &#8212; new lessons every week.<br \/>\n\ud83d\udc4d Subscribe for more web development tutorials!<\/p>\n<p>#javascriptpasswordgenerator #randompasswordgeneratorcode #passwordsecuritytutorial #webdevelopmentbasicsjavascript #javascripttutorialforbeginners #passwordgenerationalgorithm #securepasswordgeneratorscript #javascriptcodingexercises #buildingapasswordgeneratorfromscratch #passwordencryptionexample #javascriptrandompasswordtutorial #webdev #javascript #coding #programming<\/p>\n","protected":false},"excerpt":{"rendered":"<p>By the end of this tutorial, you&#8217;ll have a working password generator that creates unique, strong passwords on demand. Code walkthrough (javascript): \u2039\/\/ Generate a random password between 12-20 characters long\u203a \u2039let passwordLength = Math.floor(Math.random() * (20 &#8211; 12 + 1)) + 12;\u203a \u2039function generatePassword(length)\u203a \u2039let characters = &#8216;ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789&#8217;;\u203a \u2039let password = &#8221;;\u203a \u2039for (let i = 0; i \u2039 length; i++)\u203a \u2039password += characters[Math.floor(Math.random() * characters.length)];\u203a \u2039return password;\u203a \u2039\/\/&#8230;<\/p>\n","protected":false},"author":1,"featured_media":255795,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[1],"tags":[],"class_list":["post-255794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Building a Random Password Generator | JavaScript DOM Tutorial - UshopWell.com<\/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:\/\/ushopwell.com\/ublog\/building-a-random-password-generator-javascript-dom-tutorial\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Building a Random Password Generator | JavaScript DOM Tutorial - UshopWell.com\" \/>\n<meta property=\"og:description\" content=\"By the end of this tutorial, you&#8217;ll have a working password generator that creates unique, strong passwords on demand. 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