Script
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package tag
Provides a hint for generating a keyboard shortcut for the current element.
Provides a hint for generating a keyboard shortcut for the current element. This attribute consists of a space-separated list of characters. The browser should use the first one that exists on the computer keyboard layout.
Set this Boolean attribute to indicate that the browser should, if possible, execute the script asynchronously.
Set this Boolean attribute to indicate that the browser should, if possible, execute the script asynchronously. It has no effect on inline scripts (i.e., scripts that don't have the src attribute).
Is a space-separated list of the classes of the element.
Is a space-separated list of the classes of the element. Classes allows CSS and JavaScript to select and access specific elements via the
class selectors or functions like the method
Document.getElementsByClassName().
Is an enumerated attribute indicating if the element should be editable by the user.
Is an enumerated attribute indicating if the element should be editable by the user. If so, the browser modifies its widget to allow editing. The attribute must take one of the following values:
true or the empty string, which indicates that the element must be editable;false, which indicates that the element must not be editable.
Is the
id of an
<menu> to use as the contextual menu for this element.
Normal
script tags will pass minimal information to the
window.onerror for scripts which do not pass the standard
CORS checks.
Normal
script tags will pass minimal information to the
window.onerror for scripts which do not pass the standard
CORS checks. To allow error logging for sites which use a separate domain for static media, several browsers have enabled the
crossorigin attribute for scripts using the same definition as the standard img
crossorigin attribute. Efforts to standardize this attribute are underway on the
WHATWG mailing list.
This Boolean attribute is set to indicate to a browser that the script is meant to be executed after the document has been parsed.
This Boolean attribute is set to indicate to a browser that the script is meant to be executed after the document has been parsed. Since this feature hasn't yet been implemented by all other major browsers, authors should not assume that the script’s execution will actually be deferred. The
defer attribute shouldn't be used on scripts that don't have the
src attribute. Since Gecko 1.9.2, the
defer attribute is ignored on scripts that don't have the
src attribute. However, in Gecko 1.9.1 even inline scripts are deferred if the
defer attribute is set.
Is an enumerated attribute indicating the directionality of the element's text.
Is an enumerated attribute indicating the directionality of the element's text. It can have the following values:
ltr, which means left to right and is to be used for languages that are written from the left to the right (like English);rtl, which means right to left and is to be used for languages that are written from the right to the left (like Arabic);auto, which let the user agent decides. It uses a basic algorithm as it parses the characters inside the element until it finds a character with a strong directionality, then apply that directionality to the whole element.
Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API.
Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API. It can have the following values:
true, which indicates that the element may be draggedfalse, which indicates that the element may not be dragged.
Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API.
Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API. It can have the following values:
copy, which indicates that dropping will create a copy of the element that was draggedmove, which indicates that the element that was dragged will be moved to this new location.link, will create a link to the dragged data.
Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant.
Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant. For example, it can be used to hide elements of the page that can't be used until the login process has been completed. The browser won't render such elements. This attribute must not be used to hide content that could legitimately be shown.
Defines a unique identifier (ID) which must be unique in the whole document.
Contains inline metadata that a user agent can use to verify that a fetched resource has been delivered free of unexpected manipulation.
These attributes are related to the WHATWG HTML Microdata feature.
These attributes are related to the WHATWG HTML Microdata feature.
Participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in.
Participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in. The tag contains one single entry value in the format defines in the Tags for Identifying Languages (BCP47) IETF document. xml:lang has priority over it.
Like the
type attribute, this attribute identifies the scripting language in use.
Like the
type attribute, this attribute identifies the scripting language in use. Unlike the
type attribute, however, this attribute’s possible values were never standardized. The
type attribute should be used instead.
Is an enumerated attribute defines whether the element may be checked for spelling errors.
Is an enumerated attribute defines whether the element may be checked for spelling errors. It may have the following values:
true, which indicates that the element should be, if possible, checked for spelling errors;false, which indicates that the element should not be checked for spelling errors.
This attribute specifies the URI of an external script; this can be used as an alternative to embedding a script directly within a document.
This attribute specifies the
URI of an external script; this can be used as an alternative to embedding a script directly within a document.
script elements with an
src attribute specified should not have a script embedded within its tags.
Contains CSS styling declarations to be applied to the element.
Is an integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position.
Is an integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position. It can takes several values:
0 means that the element should be focusable and reachable via sequential keyboard navigation, but its relative order is defined by the platform convention;
Contains a text representing advisory information related to the element it belongs to.
Contains a text representing advisory information related to the element it belongs to. Such information can typically, but not necessarily, be presented to the user as a tooltip.
Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it
s
Text node children are to be translated when the page is localized, or whether to leave them unchanged.
Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it
s
Text node children are to be translated when the page is localized, or whether to leave them unchanged. It can have the following values:
"yes", which indicates that the element will be translated."no", which indicates that the element will not be translated.
This attribute identifies the scripting language of code embedded within a
script element or referenced via the element’s
src attribute.
This attribute identifies the scripting language of code embedded within a
script element or referenced via the element’s
src attribute. This is specified as a
MIME type; examples of supported
MIME types include
text/javascript,
text/ecmascript,
application/javascript, and
application/ecmascript. If this attribute is absent, the script is treated as JavaScript.
Note that in Firefox you can use advanced features such as let statements and other features in later JS versions, by using
type=application/javascript;version=1.8. Beware, however, that as this is a non-standard feature, this will most likely break support for other browsers, in particular Chromium-based browsers.
The HTML Script Element (
<script>) is used to embed or reference an executable script within an HTML or XHTML document. Scripts withoutasyncordeferattributes, as well as inline scripts, are fetched and executed immediately, before the browser continues to parse the page.