Sometimes, we want to get character value from key code in JavaScript then trim.
In this article, we’ll look at how to get character value from key code in JavaScript then trim.
How to get character value from key code in JavaScript then trim?
To get character value from key code in JavaScript then trim, we can use the string fromCharCode
method.
For instance, we write
document.onkeydown = (e) => {
let keyCode = e.keyCode;
let chrCode = keyCode - 48 * Math.floor(keyCode / 48);
let chr = String.fromCharCode(96 <= keyCode ? chrCode : keyCode);
console.log(chr);
};
to get the keyCode
from the keydown event object e
to get the key pressed.
Then we get the chrCode
character code from the keyCode
with keyCode - 48 * Math.floor(keyCode / 48)
.
Then we get the character from charCode
with String.fromCharCode
.
Conclusion
To get character value from key code in JavaScript then trim, we can use the string fromCharCode
method.