Displaying charCode and keyCode Property Values : Key Event « Event « JavaScript DHTML






  1. JavaScript DHTML
  2. Event
  3. Key Event

Displaying charCode and keyCode Property Values

 
<HTML>
<HEAD>
<TITLE>charCode and keyCode Properties</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function showCode(which, evt) {
    document.forms[0].elements[which + "Char"].value = evt.charCode
    document.forms[0].elements[which + "Key"].value = evt.keyCode
}
function clearEm() {
    for (var i = 1; i < document.forms[0].elements.length; i++) {
        document.forms[0].elements[i].value = ""    
    }
}
</SCRIPT>
</HEAD>
<BODY>
<H1>charCode and keyCode Properties</H1>
<FORM>
<P>
<TEXTAREA NAME="scratchpad" COLS="40" ROWS="5" WRAP="hard"
onKeyDown="clearEm(); showCode('down', event)" onKeyUp="showCode('up', event)"
onKeyPress="showCode('press', event)"></TEXTAREA>
</P>
<TABLE CELLPADDING="5">
<TR><TH>Event</TH><TH>event.charCode</TH><TH>event.keyCode</TH></TR>
<TR><TD>onKeyDown:</TD><TD><INPUT TYPE="text" NAME="downChar" SIZE="3"></TD>
<TD><INPUT TYPE="text" NAME="downKey" SIZE="3"></TD></TR>
<TR><TD>onKeyPress:</TD><TD><INPUT TYPE="text" NAME="pressChar" SIZE="3"></TD>
<TD><INPUT TYPE="text" NAME="pressKey" SIZE="3"></TD></TR>
<TR><TD>onKeyUp:</TD><TD><INPUT TYPE="text" NAME="upChar" SIZE="3"></TD>
<TD><INPUT TYPE="text" NAME="upKey" SIZE="3"></TD></TR>
</TABLE>
</FORM>
</BODY>
</HTML>








Related examples in the same category

1.'ctrlLeft' Example
2.'ctrlKey' Example
3.'shiftKey' Example
4.'shiftLeft' Example
5.'keyCode' Example
6.Catches and manages the keyboard's events
7.Key and Character Codes vs. Event Types
8.Shift key pressed?
9.Unicode of the key pressed
10.Keyboard Event Handler Laboratory
11.Displaying keyCode Property Values
12.Checking Events for Modifier Keys
13. Checking Events for Key and Mouse Button Pressed
14.Handle arrow key, control, alt
15.Get key code in key down event (IE)
16.Press F1 to trigger the help event