HTML 5 <command> Tag
The HTML <command>
tag is used for specifying a command that the user can invoke.
According to the HTML 5 specification:
A command
is the abstraction behind menu items, buttons, and links. Once a command is defined, other parts of the interface can refer to the same command, allowing many access points to a single feature to share aspects such as the disabled state.
The <command>
tag was introduced (and subsequently dropped) in HTML 5.
The <command>
element has now been dropped from the HTML5 specification. Therefore, you should not use it in your HTML markup. I have decided to keep this page for information purposes only.
Attributes
HTML tags can contain one or more attributes. Attributes are added to a tag to provide the browser with more information about how the tag should appear or behave. Attributes consist of a name and a value separated by an equals (=) sign, with the value surrounded by double quotes. Here's an example, style="color:black;"
.
There are 3 kinds of attributes that you can add to your HTML tags: Element-specific, global, and event handler content attributes.
The attributes that you can add to this tag are listed below.
Element-Specific Attributes
The following table shows the attributes that are specific to this tag/element.
Attribute | Description |
---|---|
type | Specifies the type of command.
Possible values:
|
label | Specifies the name of the command, as shown to the user. |
icon | Specifies the URI (or IRI) of graphical image that represents the action. |
disabled | Specifies if the command is disabled or not.
This is a boolean attribute. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace (i.e. either Possible values:
|
checked | Indicates whether the command is selected or not.
This is a boolean attribute. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace (i.e. either Possible values:
|
radiogroup | Specifies the name of the group of commands that will be toggled when the command itself is toggled, for commands whose type attribute has the value "radio". |
command | Here's what the HTML5 specification says about the command attribute:
|
title | Specifies a hint describing the command, which can be shown to the user. |
Global Attributes
The following attributes are standard across all HTML 5 tags (although the tabindex
attribute does not apply to dialog
elements).
accesskey
autocapitalize
class
contenteditable
data-*
dir
draggable
hidden
id
inputmode
is
itemid
itemprop
itemref
itemscope
itemtype
lang
part
slot
spellcheck
style
tabindex
title
translate
For a full explanation of these attributes, see HTML 5 global attributes.
Event Handler Content Attributes
Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.
onabort
onauxclick
onblur
oncancel
oncanplay
oncanplaythrough
onchange
onclick
onclose
oncontextmenu
oncopy
oncuechange
oncut
ondblclick
ondrag
ondragend
ondragenter
ondragexit
ondragleave
ondragover
ondragstart
ondrop
ondurationchange
onemptied
onended
onerror
onfocus
onformdata
oninput
oninvalid
onkeydown
onkeypress
onkeyup
onlanguagechange
onload
onloadeddata
onloadedmetadata
onloadstart
onmousedown
onmouseenter
onmouseleave
onmousemove
onmouseout
onmouseover
onmouseup
onpaste
onpause
onplay
onplaying
onprogress
onratechange
onreset
onresize
onscroll
onsecuritypolicyviolation
onseeked
onseeking
onselect
onslotchange
onstalled
onsubmit
onsuspend
ontimeupdate
ontoggle
onvolumechange
onwaiting
onwheel
For a full list of event handlers, see HTML 5 event handler content attributes.