{"id":9603,"date":"2024-01-20T18:05:00","date_gmt":"2024-01-20T18:05:00","guid":{"rendered":"https:\/\/codehim.com\/?p=9603"},"modified":"2024-01-22T16:05:54","modified_gmt":"2024-01-22T11:05:54","slug":"auto-resize-textarea-javascript","status":"publish","type":"post","link":"https:\/\/codehim.com\/text-input\/auto-resize-textarea-javascript\/","title":{"rendered":"Auto Resize Textarea JavaScript"},"content":{"rendered":"

This JavaScript code provides auto-resizing functionality for textareas. It dynamically adjusts the textarea’s height as you type. This feature enhances user experience when entering text.<\/p>\n

You can use this code in web forms, chat applications, or any text input areas. It ensures a more user-friendly experience by automatically resizing textareas, reducing the need for manual adjustments and improving the overall usability of your website or application.<\/p>\n

How to Create Auto Resize Textarea Javascript<\/h2>\n

1. Begin by creating an HTML file for your web page. Make sure to include the required Normalize.css<\/a> link in your HTML’s head section, like this:<\/p>\n

<link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/normalize\/5.0.0\/normalize.min.css\">\r\n<\/pre>\n
2. Insert a <textarea><\/textarea><\/code> element within your HTML body where you want the auto-resizing textarea to appear. You can customize the width and initial height as per your design preferences.<\/p>\n
<textarea><\/textarea><\/pre>\n
3. Style the textarea using the following CSS styles: (Optional)<\/p>\n
body {\r\n  padding: 40px;\r\n  text-align: center;\r\n}\r\n\r\ntextarea {\r\n\tmin-height: 5em;\r\n\tmax-height: 50vh;\r\n\twidth: 50%;\r\n}<\/pre>\n
4. Copy the JavaScript code into a separate JavaScript file or include it within a <script><\/code> tag in your HTML. This code contains the logic for auto-expanding the textarea as users type.<\/p>\n
var autoExpand = function (field) {\r\n\r\n\t\/\/ Reset field height\r\n\tfield.style.height = 'inherit';\r\n\r\n\t\/\/ Get the computed styles for the element\r\n\tvar computed = window.getComputedStyle(field);\r\n\r\n\t\/\/ Calculate the height\r\n\tvar height = parseInt(computed.getPropertyValue('border-top-width'), 10)\r\n\t             + parseInt(computed.getPropertyValue('padding-top'), 10)\r\n\t             + field.scrollHeight\r\n\t             + parseInt(computed.getPropertyValue('padding-bottom'), 10)\r\n\t             + parseInt(computed.getPropertyValue('border-bottom-width'), 10);\r\n\r\n\tfield.style.height = height + 'px';\r\n\r\n};\r\n\r\ndocument.addEventListener('input', function (event) {\r\n\tif (event.target.tagName.toLowerCase() !== 'textarea') return;\r\n\tautoExpand(event.target);\r\n}, false);<\/pre>\n
Feel free to customize the CSS to match your design. Implement this code where text input areas need dynamic resizing for an enhanced user interface.<\/p>\n
That’s all! hopefully, you have successfully created functionality to auto-resize textarea using JavaScript. If you have any questions or suggestions, feel free to comment below.<\/p>\n","protected":false},"excerpt":{"rendered":"
This JavaScript code provides auto-resizing functionality for textareas. It dynamically adjusts the textarea’s height as you type. This feature enhances…<\/p>\n","protected":false},"author":1,"featured_media":9616,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[97],"tags":[],"class_list":["post-9603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-text-input"],"acf":[],"yoast_head":"\nAuto Resize Textarea JavaScript — CodeHim<\/title>\n<meta name=\"description\" content=\"Here is a free code snippet to create a Auto Resize Textarea JavaScript. 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