HTMLMetaElement: scheme property
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The HTMLMetaElement.scheme
property defines the scheme of the value in the HTMLMetaElement.content
attribute.
The scheme
property was created to enable providing additional information to be used to interpret the value of the content
property. The scheme
property takes as its value a scheme format (i.e. YYYY-MM-DD
) or scheme format name (i.e. ISBN
), or a URI providing more information regarding the scheme format. The scheme defines the format of the value of the content
attribute.
The scheme
content is interpreted as an extension of the element's HTMLMetaElement.name
if a browser or user agent recognizes the scheme.
This property is deprecated and should not be used on new web pages.
Value
A string.
Examples
The following example queries a <meta>
element that contains a name
attribute with the value of identifier
.
The scheme
value is logged to the console to display the scheme of the metadata content:
// given <meta name="identifier" content="1580081754" scheme="ISBN">
const meta = document.querySelector("meta[name='identifier']");
console.log(meta.scheme);
// "ISBN"
Specifications
Specification |
---|
HTML Standard # dom-meta-scheme |
Browser compatibility
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