JS learning path: javascript keycode Daquan

Keycode 8 = BackSpace
Keycode 9 = Tab
Keycode 12 = Clear
Keycode 13 = Enter
Keycode 16 = Shift_L
Keycode 17 = Control_L
Keycode 18 = Alt_L
Keycode 19 = Pause
Keycode 20 = Caps_Lock
Keycode 27 = Escape
Keycode 32 = space
Keycode 33 = Prior
Keycode 34 = Next
Keycode 35 = End
Keycode 36 = Home
Keycode 37 = Left
Keycode 38 = Up
Keycode 39 = Right
Keycode 40 = Down
Keycode 41 = Select
Keycode 42 = Print
Keycode 43 = Execute
Keycode 45 = Insert
Keycode 46 = Delete
Keycode 47 = Help
Keycode 48 = 0 equal braceright
Keycode 49 = 1 exclam onesuperior
Keycode 50 = 2 quotedbl twosuperior
Keycode 51 = 3 section threesuperior
Keycode 52 = 4 dollar
Keycode 53 = 5 percent
Keycode 54 = 6 ampersand
Keycode 55 = 7 slash braceleft
Keycode 56 = 8 parenleft bracketleft
Keycode 57 = 9 parenright bracketright
Keycode 65 = a
Keycode 66 = B B
Keycode 67 = c C
Keycode 68 = d D
Keycode 69 = e E EuroSign
Keycode 70 = f F
Keycode 71 = g G
Keycode 72 = h H
Keycode 73 = I I
Keycode 74 = j J
Keycode 75 = k K
Keycode 76 = l L
Keycode 77 = m M mu
Keycode 78 = n N
Keycode 79 = o O
Keycode 80 = p P
Keycode 81 = q Q
Keycode 82 = r R
Keycode 83 = s
Keycode 84 = t T
Keycode 85 = u U
Keycode 86 = v V
Keycode 87 = w
Keycode 88 = x X
Keycode 89 = y Y y
Keycode 90 = z Z
Keycode 96 = KP_0 KP_0
Keycode 97 = KP_1 KP_1
Keycode 98 = KP_2 KP_2
Keycode 99 = KP_3 KP_3
Keycode 100 = KP_4 KP_4
Keycode 101 = KP_5 KP_5
Keycode 102 = KP_6 KP_6
Keycode 103 = KP_7 KP_7
Keycode 104 = KP_8 KP_8
Keycode 105 = KP_9 KP_9
Keycode 106 = KP_Multiply
Keycode 107 = KP_Add
Key code 108 = KP_Separator
Keycode 109 = KP_Subtract
Key code 110 = KP_Decimal
Keycode 111 = KP_Divide
Key code 112 = F1
Keycode 113 = F2
Key code 114 = F3
Keycode 115 = F4
Key code 116 = F5
Keycode 117 = F6
Key code 118 = F7
Key code 119 = F8
Keycode 120 = F9
Keycode 121 = F10
Keycode 122 = F11
Key Code 123 = F12
Keycode 124 = F13
Keycode 125 = F14
Keycode 126 = F15
Keycode 127 = F16
Keycode 128 = F17
Keycode 129 = F18
Keycode 130 = F19
Keycode 131 = F20
Keycode 132 = F21
Keycode 133 = F22
Keycode 134 = F23
Keycode 135 = F24
Keycode 136 = Num_Lock
Keycode 137 = Scroll_Lock
Keycode 187 = acute grave
Keycode 188 = comma semicolon
Key code 189 = minus underscore
Key code 190 = period colon
Key code 192 = numbersign apostrophe
Key Code 210 = plusminus hyphen macron
Key code 211 =
Key code 212 = copyright registered
Key code 213 = guillemotleft guillemotright
Keycode 214 = masculine ordfeminine
Keycode 215 = AE AE
Keycode 216 = cent yen
Key code 217 = questiondown exclamdown
Key code 218 = onequarter onehalf threequarters
Keycode 220 = less greater bar
Key code 221 = plus asterisk asciitilde
Key code 227 = multiply division
Keycode 228 = acircumflex Acircumflex
Key code 229 = ecircumflex Ecircumflex
Keycode 230 = icircumflex Icircumflex
Key code 231 = ocircumflex Ocircumflex
Keycode 232 = ucircumflex Ucircumflex
Keycode 233 = ntilde Ntilde
Keycode 234 = yacute Yacute
Key code 235 = oslash Ooblique
Key Code 236 = aring Aring
Keycode 237 = ccedilla Ccedilla
Key code 238 = thorn THORN
Keycode 239 = eth ETH
Key code 240 = diaeresis cedilla currency
Key code 241 = agrave Agrave atilde Atilde
Keycode 242 = egrave Egrave
Keycode 243 = igrave Igrave
Key code 244 = ograve Ograve otilde Otilde
Keycode 245 = ugrave Ugrave
Keycode 246 = adiaeresis Adiaeresis
Keycode 247 = ediaeresis Ediaeresis
Keycode 248 = idiaeresis Idiaeresis
Keycode 249 = odiaeresis Odiaeresis
Keycode 250 = udiaeresis Udiaeresis
Key code 251 = ssharp question backslash
Keycode 252 = asciicircum degree
Keycode 253 = 3 sterling
Keycode 254 = Mode_switch
 
Use
<Script language = "javascript">
Function keyevent (){
If (event. keyCode = 13)
Alert ("# $ % # ^ % ");
}
Document. onkeydown = keyevent;
</Script>
Event. The keyCode value is 37, 38, 39, and 40. The cursor of the corresponding pressed direction is left, top, right, bottom.



"Javascript: if (event. keyCode <45 | event. keyCode> 57) event. returnValue = false ;");



If (event. keycode = 13) indicates that the press is the Enter key.


"Javascript: if (event. keyCode> 45 & event. keyCode <57) event. returnValue = false ;");


<Html>
<! -- // This code by hongseheike -->
<Head>
<Script language = "javascript">
Ns4 = (document. layers )? True: false;
Ie4 = (document. all )? True: false;
Function keyDown (e ){
If (ns4 ){
Var nkey = e. which;
Var iekey = 'ns browser now ';
Var realkey = String. fromCharCode (e. which );
}
If (ie4 ){
Var iekey = event. keyCode;
Var nkey = 'ie browser now ';
Var realkey = String. fromCharCode (event. keyCode );
If (event. keyCode = 32) {realkey = '\ 'space \''}
If (event. keyCode = 13) {realkey = '\' press enter \''}
If (event. keyCode = 27) {realkey = '\ 'esc \''}
If (event. keyCode = 16) {realkey = '\ 'shift \''}
If (event. keyCode = 17) {realkey = '\ 'ctrl \''}
If (event. keyCode = 18) {realkey = '\ 'alt \''}
}
Alert ('ns browser key value: '+ nkey +' \ n' + 'ie browser key value: '+ iekey +' \ n' + 'actual key is' + realkey );
}
Document. onkeydown = keyDown;
If (ns4 ){
Document. captureEvents (Event. KEYDOWN );}
</Script>
</Head>
<Body>
// Javascript Document
<Hr>
<Center>
<H3> press any key .... </H3>
</Center>
</Body>
</Html>

**************************************** ******************************
Use javascript to intercept keyboard input on the WEB page
Using the keyCode attribute of the event object to determine the Input key value
Example example eg: if (event. keyCode = 13) alert ("enter !");
 Key value table
 A 0X65 U 0X85
 B 0X66 V 0X86
 C 0X67 W 0X87
 D 0X68X0X88
 E 0X69 Y 0X89
 F 0X70 Z 0X90
 G 0X71 0 0X48
 H 0X72 1 0X49
 I 0X73 2 0X50
201710000j 0X74 3 0X51
 K 0X75 4 0X52
201710000l 0X76 5 0X53
Limit limit M 0X77 6 0X54
Limit limit N 0X78 7 0X55
 O 0X79 8 0X56
 P 0X80 9 0X57
 Q 0X81 ESC 0X1B
 R 0X82 CTRL 0X11
 S 0X83 SHIFT 0X10
Required bytes T 0X84 ENTER 0XD
Zookeeper
When using keys, you can use event. ctrlKey, event. shiftKey, and event. altKey to determine whether the ctrl, shift, and alt keys are pressed.

DareOnly