Spec
https://tc39.github.io/proposal-intl-relative-time/
Summary
A Stage 3 proposal that introduces a new formatter under Intl.
Intl.RelativeTimeFormat is a low level API to facilitate libraries and
frameworks to format relative time in a localized fashion by providing
internationalized messages for date and time fields, using customary word
or phrase when available.
Example
let rtf = new Intl.RelativeTimeFormat("en");
// Format relative time using the day unit.rtf.format(-1, "day");// >
"yesterday"
rtf.format(2.15, "day");// > "in 2.15 days"
rtf.format(100, "day");// > "in 100 days"
rtf.format(0, "day");// > "today"
rtf.format(-0, "day");// > "today"
// Format relative time using the day unit.rtf.formatToParts(-1,
"day");// > [{ type: "literal", value: "yesterday"}]
rtf.formatToParts(100, "day");// > [{ type: "literal", value: "in " },
{ type: "integer", value: "100", unit: "day" }, { type: "literal",
value: " days" }]
Interoperability and compatibility risk
The Intl.RelativeTimeFormat is new and should have no risk to break
pre-existing javascript code.
- Firefox:In development
- Edge:No public signals
- Safari:No public signals
- Web Developers:Positive
Is this feature fully tested?
Yes; our implementation passes our own V8 tests as well as the Test262
tests for all the features.
Tracking bug
https://crbug.com/v8/7869
Link to entry on the Chrome Platform Status dashboard
https://www.chromestatus.com/feature/4875177569550336
Requesting approval to ship?
Yes. Note that since this is a V8/JS feature, this post is just an FYI to
blink-dev — no signoff from Blink API owners is required.
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