W3cubDocs

/Web APIs

Summarizer: sharedContext property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The sharedContext read-only property of the Summarizer interface returns a string describing the context the pieces of text to summarize are being used in. This helps the Summarizer to generate more suitable summaries.

Value

A string.

Examples

const summarizer = await Summarizer.create({
  sharedContext:
    "A general summary to help a user decide if the text is worth reading",
  // ...
});

// Logs "A general summary to help a user ..."
console.log(summarizer.sharedContext);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
sharedContext
138Availability may be subject to geographical restrictions.
138 No
122Availability may be subject to geographical restrictions.
No No No No No No No No

See also

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Summarizer/sharedContext