KeyboardEvent.keyCode - Web APIs
the deprecated keyboardevent.keycode read-only property represents a system and implementation dependent numerical code identifying the unmodified value of the pressed key.
... web developers shouldn't use the keycode attribute for printable characters when handling keydown and keyup events.
... as described above, the keycode attribute is not useful for printable characters, especially those input with the shift or alt key pressed.
...And 2 more matches

keycode - Archive of obsolete content
« xul reference home keycode type: string key code for keys that do not have displayable characters, such as the enter key or function keys, use this attribute instead of the key attribute.

Key Values - Web APIs
corresponding virtual keycodes for common platforms are included where available.
... keyboardevent.key value description virtual keycode windows mac linux android "unidentified" the user agent wasn't able to map the event's virtual keycode to a specific key value.
... keyboardevent.key value description virtual keycode windows mac linux android "alt" [5] the alt (alternative) key.
...And 186 more matches

nsITextInputProcessor
keycode: keyboardevent.dom_vk_return, // required if printable key, but optional if non-printable key.
...var dodefault = tip.keydown(keyevent); when you dispatch keyup event, just do this: var keyevent = new keyboardevent("", { key: "a", code: "keya", keycode: keyboardevent.dom_vk_a }); var dodefault = tip.keyup(keyevent); startcomposition(), flushpendingcomposition(), commitcomposition(), commitcompositionwith(), and cancelcomposition() can take a keyboardevent which causes modifying the composition state.
...var akeyevent = new keyboardevent("", { key: "a", code: "keya", keycode: keyboardevent.dom_vk_a }); tip.flushpendingcomposition(akeyevent); // pressing shift key for next input.
...And 11 more matches

Desktop mouse and keyboard controls - Game development
inside them we can get the code of the key that was pressed from the keycode property of the event object, see which key it is, and then set the proper variable.
... there are no helpers so you have to remember what the given codes are (or look them up); 37 is the left arrow: function keydownhandler(event) { if(event.keycode == 39) { rightpressed = true; } else if(event.keycode == 37) { leftpressed = true; } if(event.keycode == 40) { downpressed = true; } else if(event.keycode == 38) { uppressed = true; } } the keyuphandler looks almost exactly the same as the keydownhandler above, but instead of setting the pressed variables to true, we would set them to false.
... we could write our own keycode object containing the key codes, for example: var keyboardhelper = { left: 37, up: 38, right: 39, down: 40 }; that way instead of using the codes to compare the input in the handler functions we could do something like this, which is arguably easier to remember: if(event.keycode == keyboardhelper.left) { leftpressed = true; } note: you can also find a list if the different keycodes and w...
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Keyboard Shortcuts - Archive of obsolete content
here are some additional examples: <keyset> <key id="copy-key" modifiers="control" key="c"/> <key id="explore-key" modifiers="control alt" key="e"/> <key id="paste-key" modifiers="accel" key="v"/> </keyset> keycode attribute the key attribute is used to specify the key that must be pressed.
...another attribute, keycode can be used for non-printable characters.
... the keycode attribute should be set to a special code which represents the key you want.
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key - Archive of obsolete content
the key pressed must match the key attribute (or keycode attribute) as well as the modifiers attribute in order for the key element to be activated.
... attributes command, disabled, key, keycode, keytext, modifiers, oncommand, phase examples (example needed) attributes command type: id set to the id of a command element that is being observed by the element.
... keycode type: string key code for keys that do not have displayable characters, such as the enter key or function keys, use this attribute instead of the key attribute.
...And 3 more matches

nsIDOMWindowUtils
void sendcompositionevent(in astring atype); obsolete since gecko 9 void sendcompositionevent(in astring atype, in astring adata, in astring alocale); obsolete since gecko 38.0 void sendcontentcommandevent(in astring atype, [optional] in nsitransferable atransferable); void getclassname(in object aobj); boolean sendkeyevent(in astring atype, in long akeycode, in long acharcode, in long amodifiers, [optional] in boolean apreventdefault); obsolete since gecko 15.0 boolean sendkeyevent(in astring atype, in long akeycode, in long acharcode, in long amodifiers, [optional] in unsigned long aadditionalflags); deprecated since gecko 38.0 void sendmouseevent(in astring atype, in float ax, in float ay, in long abutton, in long aclickcount, ...
...scrollflags, in long adelta, in long amodifiers); obsolete since gecko 17.0 void sendwheelevent(in float ax, in float ay, in double adeltax, in double adeltay, in double adeltaz, in unsigned long adeltamode, in long amodifiers, in long alineorpagedeltax, in long alineorpagedeltay, in unsigned long aoptions); void sendnativekeyevent(in long anativekeyboardlayout, in long anativekeycode, in long amodifierflags, in astring acharacters, in astring aunmodifiedcharacters); void sendnativemouseevent(in long ascreenx, in long ascreeny, in long anativemessage, in long amodifierflags, in nsidomelement aelement); nsiquerycontenteventresult sendquerycontentevent(in unsigned long atype, in unsigned long aoffset, in unsigned long alength, in long ax, in long ay); obsole...
... boolean sendkeyevent( in astring atype, in long akeycode, in long acharcode, in long amodifiers, in unsigned long aadditionalflags optional ); deprecated since gecko 38.0 boolean sendkeyevent( in astring atype, in long akeycode, in long acharcode, in long amodifiers, in boolean apreventdefault optional ); obsolete since gecko 15.0 parameters atype event type.
...And 3 more matches

KeyboardEvent.charCode - Web APIs
code>.</p> <input type="text" /> <p id="log"></p> javascript let input = document.queryselector('input'); let log = document.queryselector('#log'); input.addeventlistener('keypress', function(e) { log.innertext = `key pressed: ${string.fromcharcode(e.charcode)}\ncharcode: ${e.charcode}`; }); result notes in a keypress event, the unicode value of the key pressed is stored in either the keycode or charcode property, but never both.
...otherwise, the code of the pressed key is stored in keycode.
...in these cases, keycode is set instead.
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HTML text fundamentals - Learn web development
t story</h1>\n<p>i am a statistician and my name is trish.</p>\n<p>my legs are made of cardboard and i am married to a fish.</p>'; var solutionentry = htmlsolution; textarea.addeventlistener('input', updatecode); window.addeventlistener('load', updatecode); // stop tab key tabbing out of textarea and // make it write a tab at the caret position instead textarea.onkeydown = function(e){ if (e.keycode === 9) { e.preventdefault(); insertatcaret('\t'); } if (e.keycode === 27) { textarea.blur(); } }; function insertatcaret(text) { var scrollpos = textarea.scrolltop; var caretpos = textarea.selectionstart; var front = (textarea.value).substring(0, caretpos); var back = (textarea.value).substring(textarea.selectionend, textarea.value.length); textarea.value = front + ...
...lution'; } updatecode(); }); var htmlsolution = '<ul>\n<li>milk</li>\n<li>eggs</li>\n<li>bread</li>\n<li>hummus</li>\n</ul>'; var solutionentry = htmlsolution; textarea.addeventlistener('input', updatecode); window.addeventlistener('load', updatecode); // stop tab key tabbing out of textarea and // make it write a tab at the caret position instead textarea.onkeydown = function(e){ if (e.keycode === 9) { e.preventdefault(); insertatcaret('\t'); } if (e.keycode === 27) { textarea.blur(); } }; function insertatcaret(text) { var scrollpos = textarea.scrolltop; var caretpos = textarea.selectionstart; var front = (textarea.value).substring(0, caretpos); var back = (textarea.value).substring(textarea.selectionend, textarea.value.length); textarea.value = front + ...
...oundabouts</li>\n<li>turn left at the third roundabout</li>\n<li>the school is on your right, 300 meters up the road</li>\n</ol>'; var solutionentry = htmlsolution; textarea.addeventlistener('input', updatecode); window.addeventlistener('load', updatecode); // stop tab key tabbing out of textarea and // make it write a tab at the caret position instead textarea.onkeydown = function(e){ if (e.keycode === 9) { e.preventdefault(); insertatcaret('\t'); } if (e.keycode === 27) { textarea.blur(); } }; function insertatcaret(text) { var scrollpos = textarea.scrolltop; var caretpos = textarea.selectionstart; var front = (textarea.value).substring(0, caretpos); var back = (textarea.value).substring(textarea.selectionend, textarea.value.length); textarea.value = front + ...
...And 2 more matches

Basic animations - Web APIs
nction touch(t) { t.classlist.toggle("off"), document.getelementsbyclassname("keypress")[0].classlist.toggle("hide") } var t = new date + "", d = void 0, cc = document.getelementsbytagname("canvas")[0], c = cc.getcontext("2d"); key = {}, key.keydown = function (t) { var e = document.createevent("keyboardevent"); object.defineproperty(e, "keycode", { get: function () { return this.keycodeval } }), object.defineproperty(e, "key", { get: function () { return 37 == this.keycodeval ?
... "arrowleft" : 38 == this.keycodeval ?
... "arrowup" : 39 == this.keycodeval ?
...And 2 more matches

Index - Web APIs
2208 keyboardevent: code values the following tables show what code values are used for each native scancode or virtual keycode on major platforms.
... 2215 key values characters, dom, key codes, key values, keyboardevent, keycodes, keypad, keystrokes, meta, meta keys, modifier keys, modifiers, reference, ui events, events, keyboard, keys the tables below list the standard key values in various categories of key, with an explanation of what the key is typically used for.
... corresponding virtual keycodes for common platforms are included where available.
...And 2 more matches

Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
<key id="key-save" key="s" modifiers="accel,shift" oncommand="save();"/> <key id="key-scroll-up" keycode="vk_page_up" oncommand="advancefocus(-1);"/> listing 19: defining keyboard shortcuts to make letters, numbers, symbols, or the space bar act as triggers, declare that character as the key attribute’s value.
... for triggers on other special keys, use the keycode attribute with the appropriate keycode name value.
... in general you can use the keycode name for any key; the most commonly used ones are shown in table 3.
... key keycode name return vk_return enter vk_enter backspace vk_back_space delete vk_delete escape vk_escape ↑ vk_up ↓ vk_down ← vk_left → vk_right table 3: typical keycode names using modifier keys use the modifiers attribute with one or more of the following comma-delimited values: "control", "alt", "shift", and "meta" in order to limit the use of keyboard shortcuts to only operate when those modifier keys are pressed together with another key.

Elements - Archive of obsolete content
ndler id id #implied event nmref #required action cdata #implied phase (capturing|bubbling|target) #implied button (1|2|3) #implied modifiers cdata #implied keycode cdata #implied key cdata #implied charcode cdata #implied clickcount (1|2|3) #implied command id #implied preventdefault false|true #implied > the handler elem...
... keycode - the keycode attribute imposes a filter on key handlers.
... its value is a key identifier for a specific keycode, e.g., vk_enter.
... [editor's note: a forthcoming dom events specification will presumably outline the list of valid keycode strings.] if this attribute is present, then its value must match the keycode field of the dom key event object in order for the handler to fire.

KeyboardEvent: code values - Web APIs
the following tables show what code values are used for each native scancode or virtual keycode on major platforms.
...therefore, gecko always maps code value from the virtual keycode.
... virtual keycode gecko chromium (48) kvk_ansi_a (0x00) "keya" "keya" kvk_ansi_s (0x01) "keys" "keys" kvk_ansi_d (0x02) "keyd" "keyd" kvk_ansi_f (0x03) "keyf" "keyf" kvk_ansi_h (0x04) "keyh" "keyh" kvk_ansi_g (0x05) "keyg" "keyg" kvk_ansi_z (0x06) "keyz" "keyz" kvk_ansi_x (0x07) "keyx" "keyx" kvk_ansi_c (0x08) "keyc" "keyc" kvk_ansi_v (0x09) "keyv" "keyv" kvk_iso_section (0x0a) "intlbackslash" "intlbackslash" kvk_ansi_b (0x0b) "keyb" "keyb" kvk_ansi_q (0x0c) "keyq" "keyq" kvk_ansi_w (0x0d) "keyw" "keyw" kvk_ansi_e (0x0e) "keye" "keye" kvk_ansi_r (...
... scancode (hardware_keycode) gecko chromium (44) 0x0009 "escape" "escape" 0x000a "digit1" "digit1" 0x000b "digit2" "digit2" 0x000c "digit3" "digit3" 0x000d "digit4" "digit4" 0x000e "digit5" "digit5" 0x000f "digit6" "digit6" 0x0010 "digit7" "digit7" 0x0011 "digit8" "digit8" ...