For a frontend developer when it is asked to do something unique that person will think of JQuery first. Today a simple jquery code to allow only numbers to a text-box. Below code will allow following key events :
- Backspace
- Delete
- Tab
- Escape
- Enter
- Ctrl+A
- Home
- end
- left
- right
Just add a class to textbox .onlyNumbers and paste the following jquery code :
$(document).ready(function() {
$(".onlyNumbers").keydown(function(event) {
if (event.keyCode == 46 || event.keyCode == 8 || event.keyCode == 9 || event.keyCode == 27 || event.keyCode == 13 || (event.keyCode == 65 && event.ctrlKey === true) || (event.keyCode >= 35 && event.keyCode <= 39)) {
return;
}
else {
if (event.shiftKey || (event.keyCode < 48 || event.keyCode > 57) && (event.keyCode < 96 || event.keyCode > 105)) {
event.preventDefault();
}
}
});
});
You can also apply this to textarea.
Demo:
JQuery Allow Only Numbers,
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