{"id":12260,"date":"2022-08-03T12:28:05","date_gmt":"2022-08-03T16:28:05","guid":{"rendered":"http:\/\/local.brightwhiz\/?post_type=snippets&#038;p=12260"},"modified":"2022-08-03T12:28:08","modified_gmt":"2022-08-03T16:28:08","slug":"add-class-to-html-element-using-vanilla-javascript","status":"publish","type":"snippets","link":"http:\/\/local.brightwhiz\/snippets\/add-class-to-html-element-using-vanilla-javascript\/","title":{"rendered":"How to Add a Class to an HTML Element Using Vanilla JavaScript"},"content":{"rendered":"\n<p>If you have an HTML element like this.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-markup\">&lt;div id=&quot;element&quot;&gt;&lt;\/div&gt;<\/code><\/pre>\n\n\n\n<p>You can add or remove classes with similar JavaScript code.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-javascript\">var element = document.getElementById(&#039;element&#039;);\nelement.classList.add(&#039;class-1&#039;);\nelement.classList.add(&#039;class-2&#039;, &#039;class-3&#039;);<\/code><\/pre>\n\n\n\n<p>This would be the result.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-markup\">&lt;div id=&quot;element&quot; class=&quot;class-1 class-2 class-3&quot;&gt;&lt;\/div&gt;<\/code><\/pre>\n\n\n\n<p>Remove a class.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-javascript\">element.classList.remove(&#039;class-3&#039;);<\/code><\/pre>\n\n\n\n<p>This is after removing once of the classes.<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-markup\">&lt;div id=&quot;element&quot; class=&quot;class-1 class-2&quot;&gt;&lt;\/div&gt;<\/code><\/pre>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":[],"categories":[953,27,15,16],"tags":[303,328,424,471,638],"yoast_head":"<!-- This site is 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