What is the best way to identify which key has been pressed using javascript?
What is the best way to identify which key has been pressed using javascript?
Within the method that handles the key event:
function(e){
var pressedKey = String.fromCharCode(e.keyCode);
}
Using jQuery:
jQuery(window).on('keydown', function(e) {
var keyCode = e.keyCode || e.which;
//perform actions based on the key code
});
Traditional Approach:
document.onkeyup = checkKeyPress;
function checkKeyPress(){
var keyPressed = event.keyCode;
//take appropriate action
}
To manage the keydown and keyup occurrences on the document, simply create a flag for each key.
When using JavaScript:
function myKeyPress(e){
var keynum;
if(window.event){ // For IE
keynum = e.keyCode;
}else
if(e.which){ // For Netscape/Firefox/Opera
keynum = e.which;
}
alert(String.fromCharCode(keynum));
alert(keynum);
if (keynum == 13) {
alert("You Pressed Enter Key");
}
}
When working with HTML:
<textarea name="box" id="box" onkeypress="return myKeyPress(event)"></textarea>
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