Menu
I have a textarea, On every Enter key pressed in textarea I want new line to be started with a bullet say (*). How to go about it ?
No jQuery please.
I can observe for the Enter key , after that !? Should I have to get the whole value of textarea and append * to it and again fill the textarea ?
522
Use the value property to get the value of a textarea, e.g. const value = textarea. value . The value property can be used to read and set the value of a textarea element. If the textarea is empty, an empty string is returned.
KeyCode was deprecated because in practice it was “inconsistent across platforms and even the same implementation on different operating systems or using different localizations.” The new recommendation is to use key or code .
You could do something like this:
<body>
<textarea id="txtArea" onkeypress="onTestChange();"></textarea>
<script>
function onTestChange() {
var key = window.event.keyCode;
// If the user has pressed enter
if (key === 13) {
document.getElementById("txtArea").value = document.getElementById("txtArea").value + "\n*";
return false;
}
else {
return true;
}
}
</script>
</body>
Although the new line character feed from pressing enter will still be there, but its a start to getting what you want.
85
Simply add this tad to your textarea.
onkeydown="if(event.keyCode == 13) return false;"
You need to consider the case where the user presses enter in the middle of the text, not just at the end. I'd suggest detecting the enter key in the keyup event, as suggested, and use a regular expression to ensure the value is as you require:
<textarea id="t" rows="4" cols="80"></textarea>
<script type="text/javascript">
function formatTextArea(textArea) {
textArea.value = textArea.value.replace(/(^|\r\n|\n)([^*]|$)/g, "$1*$2");
}
window.onload = function() {
var textArea = document.getElementById("t");
textArea.onkeyup = function(evt) {
evt = evt || window.event;
if (evt.keyCode == 13) {
formatTextArea(this);
}
};
};
</script>
My scenario is when the user strikes the enter key while typing in textarea i have to include a line break.I achieved this using the below code......Hope it may helps somebody......
function CheckLength()
{
var keyCode = event.keyCode
if (keyCode == 13)
{
document.getElementById('ctl00_ContentPlaceHolder1_id_txt_Suggestions').value = document.getElementById('ctl00_ContentPlaceHolder1_id_txt_Suggestions').value + "\n<br>";
}
}
You could do something like this:
$("#txtArea").on("keypress",function(e) {
var key = e.keyCode;
// If the user has pressed enter
if (key == 13) {
document.getElementById("txtArea").value =document.getElementById("txtArea").value + "\n";
return false;
}
else {
return true;
}
});<textarea id="txtArea"></textarea>If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
