{"id":200757,"date":"2025-04-05T12:12:49","date_gmt":"2025-04-05T12:12:49","guid":{"rendered":"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/"},"modified":"2025-04-05T12:12:49","modified_gmt":"2025-04-05T12:12:49","slug":"how-to-change-html-attribute-value-in-javascript","status":"publish","type":"post","link":"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/","title":{"rendered":"How to change HTML attribute value in JavaScript?"},"content":{"rendered":"<p>HTML attributes are crucial for web development, as they provide information about elements on a webpage. Sometimes, you may need to change the value of an HTML attribute using JavaScript. This can be especially useful for dynamically updating your webpage based on user interactions or other events. In this article, we will explore how to change HTML attribute values in JavaScript and address some common questions related to this topic.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_62 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >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: #999;color:#999\" 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: #999;color:#999\" 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:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#How_to_change_HTML_attribute_value_in_JavaScript\" title=\"How to change HTML attribute value in JavaScript?\">How to change HTML attribute value in JavaScript?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#FAQs_on_Changing_HTML_Attribute_Values_in_JavaScript\" title=\"FAQs on Changing HTML Attribute Values in JavaScript\">FAQs on Changing HTML Attribute Values in JavaScript<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#1_Can_I_change_multiple_attributes_of_an_element_at_once\" title=\"1. Can I change multiple attributes of an element at once?\">1. Can I change multiple attributes of an element at once?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#2_Is_it_possible_to_remove_an_attribute_using_JavaScript\" title=\"2. Is it possible to remove an attribute using JavaScript?\">2. Is it possible to remove an attribute using JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#3_How_can_I_change_the_class_attribute_of_an_element\" title=\"3. How can I change the class attribute of an element?\">3. How can I change the class attribute of an element?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#4_Can_I_change_custom_data_attributes_using_JavaScript\" title=\"4. Can I change custom data attributes using JavaScript?\">4. Can I change custom data attributes using JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#5_How_do_I_change_the_value_attribute_of_an_input_element\" title=\"5. How do I change the value attribute of an input element?\">5. How do I change the value attribute of an input element?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#6_Is_it_possible_to_change_the_href_attribute_of_a_link_using_JavaScript\" title=\"6. Is it possible to change the href attribute of a link using JavaScript?\">6. Is it possible to change the href attribute of a link using JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#7_Can_I_change_the_style_attribute_of_an_element_using_JavaScript\" title=\"7. Can I change the style attribute of an element using JavaScript?\">7. Can I change the style attribute of an element using JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#8_How_can_I_change_the_alt_attribute_of_an_image_using_JavaScript\" title=\"8. How can I change the alt attribute of an image using JavaScript?\">8. How can I change the alt attribute of an image using JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#9_How_do_I_change_the_disabled_attribute_of_a_form_element\" title=\"9. How do I change the disabled attribute of a form element?\">9. How do I change the disabled attribute of a form element?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#10_Is_it_possible_to_change_the_title_attribute_of_an_element_with_JavaScript\" title=\"10. Is it possible to change the title attribute of an element with JavaScript?\">10. Is it possible to change the title attribute of an element with JavaScript?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#11_How_can_I_change_the_id_attribute_of_an_element_dynamically\" title=\"11. How can I change the id attribute of an element dynamically?\">11. How can I change the id attribute of an element dynamically?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#12_Can_I_change_the_src_attribute_of_a_script_element_using_JavaScript\" title=\"12. Can I change the src attribute of a script element using JavaScript?\">12. Can I change the src attribute of a script element using JavaScript?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"How_to_change_HTML_attribute_value_in_JavaScript\"><\/span>How to change HTML attribute value in JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>**To change the value of an HTML attribute in JavaScript, you can use the setAttribute() method. First, you need to select the element you want to modify using document.querySelector() or another DOM selection method. Then, you can call setAttribute() on the selected element, providing the attribute name and the new value as arguments. Here is an example of how you can change the src attribute of an image element:**<\/p>\n<p>&#8220;`javascript<br \/>\ndocument.querySelector(&#8216;img&#8217;).setAttribute(&#8216;src&#8217;, &#8216;new-image.jpg&#8217;);<br \/>\n&#8220;`<\/p>\n<p>This code snippet selects the first image element on the webpage and changes its src attribute to &#8216;new-image.jpg&#8217;.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"FAQs_on_Changing_HTML_Attribute_Values_in_JavaScript\"><\/span>FAQs on Changing HTML Attribute Values in JavaScript<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"1_Can_I_change_multiple_attributes_of_an_element_at_once\"><\/span>1. Can I change multiple attributes of an element at once?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change multiple attributes of an element by calling setAttribute() multiple times with different attribute names and values.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Is_it_possible_to_remove_an_attribute_using_JavaScript\"><\/span>2. Is it possible to remove an attribute using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can remove an attribute from an element by calling removeAttribute() on the selected element and providing the attribute name as an argument.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_How_can_I_change_the_class_attribute_of_an_element\"><\/span>3. How can I change the class attribute of an element?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nTo change the class attribute of an element in JavaScript, you can use the className property of the element. For example, element.className = &#8216;new-classname&#8217;; will set a new class for the element.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Can_I_change_custom_data_attributes_using_JavaScript\"><\/span>4. Can I change custom data attributes using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change custom data attributes (attributes starting with &#8216;data-&#8216;) using setAttribute() in the same way as changing other attributes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_How_do_I_change_the_value_attribute_of_an_input_element\"><\/span>5. How do I change the value attribute of an input element?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can change the value attribute of an input element by targeting the element and setting its value property like this: element.value = &#8216;new value&#8217;;.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Is_it_possible_to_change_the_href_attribute_of_a_link_using_JavaScript\"><\/span>6. Is it possible to change the href attribute of a link using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change the href attribute of a link element by targeting the element and setting its href property to a new URL.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Can_I_change_the_style_attribute_of_an_element_using_JavaScript\"><\/span>7. Can I change the style attribute of an element using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change the style attribute of an element by targeting the element and setting its style property with CSS style rules.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_How_can_I_change_the_alt_attribute_of_an_image_using_JavaScript\"><\/span>8. How can I change the alt attribute of an image using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nTo change the alt attribute of an image in JavaScript, you need to select the image element and set its alt property to the new value.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_How_do_I_change_the_disabled_attribute_of_a_form_element\"><\/span>9. How do I change the disabled attribute of a form element?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYou can change the disabled attribute of a form element by targeting the element and setting its disabled property to true or false.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"10_Is_it_possible_to_change_the_title_attribute_of_an_element_with_JavaScript\"><\/span>10. Is it possible to change the title attribute of an element with JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change the title attribute of an element by selecting the element and setting its title property to a new string.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"11_How_can_I_change_the_id_attribute_of_an_element_dynamically\"><\/span>11. How can I change the id attribute of an element dynamically?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nTo change the id attribute of an element dynamically, you can target the element and set its id property to a new value.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"12_Can_I_change_the_src_attribute_of_a_script_element_using_JavaScript\"><\/span>12. Can I change the src attribute of a script element using JavaScript?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\nYes, you can change the src attribute of a script element by selecting the script element and setting its src property to a new URL.<\/p>\n<p>In conclusion, changing HTML attribute values using JavaScript is a powerful tool for manipulating elements on a webpage dynamically. By leveraging methods like setAttribute() and properties like className or value, you can update attribute values to create interactive and responsive web experiences. Remember to always test your code and ensure it functions as expected across different browsers for a seamless user experience.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HTML attributes are crucial for web development, as they provide information about elements on a webpage. Sometimes, you may need to change the value of an HTML attribute using JavaScript. This can be especially useful for dynamically updating your webpage based on user interactions or other events. In this article, we will explore how to &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How to change HTML attribute value in JavaScript?\" class=\"read-more button\" href=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#more-200757\">Read more<span class=\"screen-reader-text\">How to change HTML attribute value in JavaScript?<\/span><\/a><\/p>\n","protected":false},"author":51,"featured_media":107420,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86279],"tags":[],"class_list":["post-200757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to change HTML attribute value in JavaScript?<\/title>\n<meta name=\"description\" content=\"HTML attributes are crucial for web development, as they provide information about elements on a webpage. 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Sometimes, you may need to change the value of\" \/>\n<meta property=\"og:url\" content=\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/\" \/>\n<meta property=\"og:site_name\" content=\"Namso Gen Blog - Free Credit Card Generator [100% Valid]\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/synchronyfinancial\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-05T12:12:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/namso-gen.co\/blog\/wp-content\/uploads\/2024\/03\/faq.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Adam Forbes\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@synchrony\" \/>\n<meta name=\"twitter:site\" content=\"@synchrony\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Adam Forbes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/\"},\"author\":{\"name\":\"Adam Forbes\",\"@id\":\"https:\/\/namso-gen.co\/blog\/#\/schema\/person\/88cd882dfb29a6b147bc0ea26dc84060\"},\"headline\":\"How to change HTML attribute value in JavaScript?\",\"datePublished\":\"2025-04-05T12:12:49+00:00\",\"dateModified\":\"2025-04-05T12:12:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/\"},\"wordCount\":673,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/namso-gen.co\/blog\/#organization\"},\"articleSection\":[\"Learn\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/\",\"url\":\"https:\/\/namso-gen.co\/blog\/how-to-change-html-attribute-value-in-javascript\/\",\"name\":\"How to change HTML attribute value in JavaScript?\",\"isPartOf\":{\"@id\":\"https:\/\/namso-gen.co\/blog\/#website\"},\"datePublished\":\"2025-04-05T12:12:49+00:00\",\"dateModified\":\"2025-04-05T12:12:49+00:00\",\"description\":\"HTML attributes are crucial for web development, as they provide information about elements on a webpage. 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