Textarea adaptive height based on content_javascript skills
May 16, 2016 pm 05:18 PMJust look at the code, it’s very simple and practical.
<!DOCTYPE html>
<html> ;
<head>
<title>autoresizing textarea</title>
<style type="text/css">
textarea {
border: 0 none white;
overflow: hidden;
padding: 0;
outline: none;
background-color: #D0D0D0;
resize: none;
}
</style>
<script type="text/javascript">
var observe;
if (window.attachEvent) {
observe = function (element, event, handler) {
element. attachEvent('on' event, handler);
};
}
else {
observe = function (element, event, handler) {
element.addEventListener(event, handler, false );
};
}
function init () {
var text = document.getElementById('text');
function resize () {
text.style.height = 'auto';
text.style.height = text.scrollHeight 'px';
}
/* 0-timeout to get the already changed text */
function delayedResize () {
window.setTimeout(resize, 0);
}
observe(text, 'change', resize);
observe(text, 'cut', delayedResize);
observe(text, 'paste', delayedResize);
observe(text, 'drop', delayedResize);
observe(text, 'keydown', delayedResize);
text.focus();
text.select();
resize();
}
</script>
</head>
< body onload="init();">
<textarea cols="40" rows="1" style="height:25px;" id="text"></textarea>
</body>
</html>
Hot Article
Hot tools Tags
Hot Article
Hot Article Tags
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to implement an online speech recognition system using WebSocket and JavaScript
Dec 17, 2023 pm 02:54 PM
How to implement an online speech recognition system using WebSocket and JavaScript
WebSocket and JavaScript: key technologies for implementing real-time monitoring systems
Dec 17, 2023 pm 05:30 PM
WebSocket and JavaScript: key technologies for implementing real-time monitoring systems
How to implement an online reservation system using WebSocket and JavaScript
Dec 17, 2023 am 09:39 AM
How to implement an online reservation system using WebSocket and JavaScript
How to use JavaScript and WebSocket to implement a real-time online ordering system
Dec 17, 2023 pm 12:09 PM
How to use JavaScript and WebSocket to implement a real-time online ordering system
JavaScript and WebSocket: Building an efficient real-time weather forecasting system
Dec 17, 2023 pm 05:13 PM
JavaScript and WebSocket: Building an efficient real-time weather forecasting system
Simple JavaScript Tutorial: How to Get HTTP Status Code
Jan 05, 2024 pm 06:08 PM
Simple JavaScript Tutorial: How to Get HTTP Status Code
How to get HTTP status code in JavaScript the easy way
Jan 05, 2024 pm 01:37 PM
How to get HTTP status code in JavaScript the easy way
How to use insertBefore in javascript
Nov 24, 2023 am 11:56 AM
How to use insertBefore in javascript
