Is there a way to adjust the height of the text area based on the content entered by the user? I want it to automatically increase as the user types and decrease if they delete content.
Is there a way to adjust the height of the text area based on the content entered by the user? I want it to automatically increase as the user types and decrease if they delete content.
Indeed, I have found the solution and it is functioning perfectly.
<textarea onkeyup="textAreaAdjust(this)" placeholder="Share your thoughts" rows="1"></textarea>
<script type="text/javascript">
function textAreaAdjust(element) {
element.style.height = "1px"; element.style.height = (25+element.scrollHeight)+"px"; }
</script>
Give this a shot:
<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>
<body onload="init();">
<textarea rows="1" style="height:1em;" id="text"></textarea>
</body>
</html>Check out this Demo
For more information, see Creating a textarea with auto-resize
Have you tried implementing the jQuery autogrow plugin?
Here's the code snippet:
$('textarea').autogrow({onInitialize: true});
Just a reminder: make sure to include the autogrow plugin file on your page.
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