| { |
| "javascript": { |
| "operators": { |
| "optional_chaining": { |
| "__compat": { |
| "description": "Optional chaining operator (`?.`)", |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Optional_chaining", |
| "spec_url": "https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-OptionalExpression", |
| "tags": [ |
| "web-features:snapshot:ecmascript-2020", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "80", |
| "notes": "A call with a non-final spread argument in an optional chain fails in Chrome 80 through 90. See [bug 42201552](https://crbug.com/42201552)." |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": "mirror", |
| "firefox": { |
| "version_added": "74" |
| }, |
| "firefox_android": "mirror", |
| "nodejs": { |
| "version_added": "14.0.0" |
| }, |
| "oculus": "mirror", |
| "opera": "mirror", |
| "opera_android": "mirror", |
| "safari": { |
| "version_added": "13.1" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| } |
| } |
| } |
| } |
