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Specification https://github.com/tc39/proposal-upsert Summary ECMAScript proposal for Map.prototype.getOrInsert, Map.prototype.getOrInsertComputed, WeakMap.prototype.getOrInsert, and WeakMap.prototype.getOrInsertComputed. Blink component Blink>JavaScript>Language Web Feature ID getorinsert Motivation No information provided Initial public proposal No information provided TAG review No information provided TAG review status Not applicable Risks Interoperability and Compatibility No information provided Gecko: Shipped/Shipping (https://www.firefox.com/en-US/firefox/144.0/releasenotes) Firefox now supports the upsert proposal. This adds getOrInsert and getOrInsertComputed methods to Map and WeakMap. These methods either return the value associated with a key, or insert a default value, and then return that value, simplifying handling of cases where it's not known if a key is already present in the Map or WeakMap. WebKit: Shipped/Shipping (https://developer.apple.com/documentation/safari-release-notes/safari-18_4-release-notes) Added support for Map.prototype.getOrInsert and WeakMap.prototype.getOrInsert. (138955824) Web developers: No signals Other signals: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? No information provided Debuggability No information provided Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? No Is this feature fully tested by web-platform-tests? No https://github.com/tc39/test262/pull/4454 Flag name on about://flags --js-flags=--js_upsert Finch feature name V8Flag_js_upsert Rollout plan Will ship enabled for all users Requires code in //chrome? False Tracking bug https://issues.chromium.org/u/1/issues/434977728 Estimated milestones Shipping on desktop 145 DevTrial on desktop 143 Shipping on Android 145 DevTrial on Android 143 Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (eg links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (eg, changing to naming or structure of the API in a non-backward-compatible way). No information provided Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5201653661827072?gate=6583456041664512 This intent message was generated by Chrome Platform Status. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/692eb5f4.050a0220.107b62.1348.GAE%40google.com.
