Appendix C. Keyboard Event Character Values

Keyboard events in recent browsers provide information about the keys and, where applicable, characters corresponding to the keys. Character values may be read from the keypress event, while the key values, including navigation and function keys, are available from keydown and keyup events. The event object properties you use to read these values varies with the event object model. See Chapter 6 for cross-browser implementation details.

The following table reveals the codes for characters in the lower ASCII character set. Some of the codes are for action keys (such as Backspace and Tab), which have character values that are also in this range. Read these values from a keypress event object.

Character	Character value
Backspace	8
Tab	9
Enter (Return on Mac)	13
Space	32
!	33
"	34
#	35
$	36
%	37
&	38
'	39
(	40
)	41
*	42
+	43
,	44
-	45
.	46
/	47
0	48
1	49
2	50
3	51
4	52
5	53
6	54
7	55
8	56
9	57
:	58
;	59
<	60
=	61
>	62
?	63
@	64
A	65
B	66
C	67
D	68
E	69
F	70
G	71
H	72
I	73
J	74
K	75
L	76
M	77
N	78
O	79
P	80
Q	81
R	82
S	83
T	84
U	85
V	86
W	87
X	88
Y	89
Z	90
[	91
\	92
]	93
^	94
_	95
`	96
a	97
b	98
c	99
d	100
e	101
f	102
g	103
h	104
i	105
j	106
k	107
l	108
m	109
n	110
o	111
p	112
q	113
r	114
s	115
t	116
u	117
v	118
w	119
x	120
y	121
z	122
{	123
|	124
}	125
~	126
Delete	127

The following table lists all keys on a typical U. S. English keyboard and their corresponding key codes. Read these codes from an onkeydown or onkeyup event object:

Key	Key value
Alt	18
Arrow down	40
Arrow left	37
Arrow right	39
Arrow up	38
Backspace	8
Caps Lock	20
Ctrl	17
Delete	46
End	35
Enter	13
Esc	27
F1	112
F2	113
F3	114
F4	115
F5	116
F6	117
F7	118
F8	119
F9	120
F10	121
F11	122
F12	123
Home	36
Insert	45
Num Lock	144
(NumPad) -	109
(NumPad) *	106
(NumPad) .	110
(NumPad) /	111
(NumPad) +	107
(NumPad) 0	96
(NumPad) 1	97
(NumPad) 2	98
(NumPad) 3	99
(NumPad) 4	100
(NumPad) 5	101
(NumPad) 6	102
(NumPad) 7	103
(NumPad) 8	104
(NumPad) 9	105
Page Down	34
Page Up	33
Pause	19
Print Scrn	44
Scroll Lock	145
Shift	16
Spacebar	32
Tab	9
A	65
B	66
C	67
D	68
E	69
F	70
G	71
H	72
I	73
J	74
K	75
L	76
M	77
N	78
O	79
P	80
Q	81
R	82
S	83
T	84
U	85
V	86
W	87
X	88
Y	89
Z	90
1	49
2	50
3	51
4	52
5	53
6	54
7	55
8	56
9	57
0	48
`	222
-	189
,	188
.	190
/	191
;	186
[	219
\	220
]	221
`	192
=	187