ScriptElement Interface
The script
element is used to embed or reference an executable script within an HTML or XHTML document.
Scripts without async
or defer
attributes are fetched and executed immediately, before the browser continues to parse the page.
Extends
Constructors
Code new ScriptElement() #
ScriptElement();
Fields
Code bool async #
async
DOM property defaults to true
for script-created scripts, so the default behavior matches the behavior of IE and WebKit. To request script-inserted external scripts be executed in the insertion order in browsers where the document.createElement("script").async
evaluates to true
(such as Firefox 4.0), set .async=false
on the scripts you want to maintain order. Never call document.write()
from an async
script. In Gecko 1.9.2, calling document.write()
has an unpredictable effect. In Gecko 2.0, calling document.write()
from an async
script has no effect (other than printing a warning to the error console).
bool async;
Code bool defer #
document.write()
from a defer
script (since Gecko 1.9.2, this will blow away the document). 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.
bool defer;
Code String src #
script
elements with an src
attribute specified should not have a script embedded within its tags.
String src;
Code String type #
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.
String type;
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