In my code have to allow numerical alphabets and special characters. but in my code not accepting the space and special characters except @. Here is my code.
allowAlphaNumericSpace(e: any) {
var code = 'charCode' in e ? e.charCode : e.keyCode;
if (
!(code > 47 && code < 58) && // numeric (0-9)
!(code >= 64 && code <= 91) && // upper alpha (A-Z)
!(code > 96 && code < 123)
) {
// lower alpha (a-z)
e.preventDefault();
}
}
charCode is non-standard, deprecated, and not foreseen for keydown events, it may be available, but always 0.
keyCode is also deprecated.
Use e.key:
const accepted = " ,;!?";
function allowAlphaNumericSpace(e) {
var code = e.key;
if (isNaN(code) && code.toUpperCase() == code.toLowerCase()
&& !accepted.includes(code)) {
e.preventDefault();
}
}
document.querySelector("input").addEventListener("keydown", allowAlphaNumericSpace);<input>If some other characters need to be accepted, it is easily adapted.