| { |
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| "Object": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object-objects", |
| "tags": [ |
| "web-features:snapshot:ecmascript-1", |
| "web-features:object-object" |
| ], |
| "support": { |
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| "version_added": "1" |
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| "version_added": "1.0" |
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| "version_added": "12" |
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| "firefox": { |
| "version_added": "1" |
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| "firefox_android": "mirror", |
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| "version_added": "3" |
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| "version_added": "3" |
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| "version_added": "10.1" |
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| "version_added": "1" |
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| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": { |
| "version_added": "1" |
| }, |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| }, |
| "Object": { |
| "__compat": { |
| "description": "`Object()` constructor", |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/Object", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object-constructor", |
| "tags": [ |
| "web-features:snapshot:ecmascript-1", |
| "web-features:object-object" |
| ], |
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| "version_added": "1.0.0" |
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| "version_added": "1" |
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| "version_added": "1.0" |
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| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "1" |
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| "firefox_android": "mirror", |
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| "version_added": "3" |
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| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
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| "version_added": "3" |
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| "version_added": "10.1" |
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| "safari": { |
| "version_added": "1" |
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| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": { |
| "version_added": "1" |
| }, |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "assign": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign", |
| "tags": [ |
| "web-features:snapshot:ecmascript-2015", |
| "web-features:object-object" |
| ], |
| "support": { |
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| "version_added": "1.0.0" |
| }, |
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| "version_added": "45" |
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| "chrome_android": "mirror", |
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| "version_added": "1.0" |
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| "version_added": "12" |
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| "firefox": { |
| "version_added": "34" |
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| "firefox_android": "mirror", |
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| "version_added": "4.0.0" |
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| "opera": "mirror", |
| "opera_android": "mirror", |
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| "version_added": "9" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "constructor": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/constructor", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.constructor", |
| "tags": [ |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
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| "version_added": "1" |
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| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
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| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "1" |
| }, |
| "firefox_android": "mirror", |
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| "version_added": "8" |
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| "nodejs": { |
| "version_added": "0.10.0" |
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| "oculus": "mirror", |
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| "version_added": "4" |
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| "version_added": "10.1" |
| }, |
| "safari": { |
| "version_added": "1" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "create": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.create", |
| "tags": [ |
| "web-features:snapshot:ecmascript-5", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
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| "version_added": "5" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "4" |
| }, |
| "firefox_android": "mirror", |
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| "version_added": "9" |
| }, |
| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
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| "version_added": "11.6" |
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| "version_added": "12" |
| }, |
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| "version_added": "5" |
| }, |
| "safari_ios": { |
| "version_added": "5" |
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| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "defineGetter": { |
| "__compat": { |
| "description": "`__defineGetter__`", |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__defineGetter__", |
| "tags": [ |
| "web-features:accessor-methods" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "1" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "1", |
| "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A `TypeError` will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case." |
| }, |
| "firefox_android": { |
| "version_added": "4" |
| }, |
| "ie": { |
| "version_added": "11" |
| }, |
| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
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| "version_added": "9.5" |
| }, |
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| "version_added": "10.1" |
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| "safari": { |
| "version_added": "3" |
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| "safari_ios": { |
| "version_added": "1" |
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| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": true |
| } |
| } |
| }, |
| "defineProperties": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperties", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.defineproperties", |
| "tags": [ |
| "web-features:snapshot:ecmascript-5", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "5" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "4" |
| }, |
| "firefox_android": "mirror", |
| "ie": { |
| "version_added": "9" |
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| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
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| "version_added": "11.6" |
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| "version_added": "12" |
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| "safari": { |
| "version_added": "5" |
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| "version_added": "5" |
| }, |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "defineProperty": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.defineproperty", |
| "tags": [ |
| "web-features:snapshot:ecmascript-5", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
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| "version_added": "5" |
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| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
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| "version_added": "12" |
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| "firefox": { |
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| }, |
| "firefox_android": "mirror", |
| "ie": [ |
| { |
| "version_added": "9" |
| }, |
| { |
| "version_added": "8", |
| "version_removed": "9", |
| "partial_implementation": true, |
| "notes": "In Internet Explorer 8, this was only supported on DOM objects and with some non-standard behaviors. This was later fixed in Internet Explorer 9." |
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| ], |
| "nodejs": { |
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| "oculus": "mirror", |
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| "opera_android": { |
| "version_added": "12" |
| }, |
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| "version_added": "5.1", |
| "notes": "Also supported in Safari 5, but not on DOM objects." |
| }, |
| "safari_ios": { |
| "version_added": "6", |
| "notes": "Also supported in Safari for iOS 4.2, but not on DOM objects." |
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| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
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| } |
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| "defineSetter": { |
| "__compat": { |
| "description": "`__defineSetter__`", |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineSetter__", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.prototype.__defineSetter__", |
| "tags": [ |
| "web-features:accessor-methods" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
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| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "1", |
| "notes": "Starting with Firefox 48, this method can no longer be called at the global scope without any object. A `TypeError` will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case." |
| }, |
| "firefox_android": { |
| "version_added": "4" |
| }, |
| "ie": { |
| "version_added": "11" |
| }, |
| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
| "opera": { |
| "version_added": "9.5" |
| }, |
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| "version_added": "10.1" |
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| "safari": { |
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| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": true |
| } |
| } |
| }, |
| "entries": { |
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| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/entries", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.entries", |
| "tags": [ |
| "web-features:snapshot:ecmascript-2017", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "54" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "14" |
| }, |
| "firefox": { |
| "version_added": "47" |
| }, |
| "firefox_android": "mirror", |
| "nodejs": { |
| "version_added": "7.0.0" |
| }, |
| "oculus": "mirror", |
| "opera": "mirror", |
| "opera_android": "mirror", |
| "safari": { |
| "version_added": "10.1" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "freeze": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.freeze", |
| "tags": [ |
| "web-features:snapshot:ecmascript-5", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "6" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
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| "edge": { |
| "version_added": "12" |
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| "firefox": { |
| "version_added": "4" |
| }, |
| "firefox_android": "mirror", |
| "ie": { |
| "version_added": "9" |
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| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
| "opera": { |
| "version_added": "12" |
| }, |
| "opera_android": { |
| "version_added": "12" |
| }, |
| "safari": { |
| "version_added": "5.1" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "fromEntries": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/fromEntries", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.fromentries", |
| "tags": [ |
| "web-features:snapshot:ecmascript-2019", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "73" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": "mirror", |
| "firefox": { |
| "version_added": "63" |
| }, |
| "firefox_android": "mirror", |
| "nodejs": { |
| "version_added": "12.0.0" |
| }, |
| "oculus": "mirror", |
| "opera": "mirror", |
| "opera_android": "mirror", |
| "safari": { |
| "version_added": "12.1" |
| }, |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "getOwnPropertyDescriptor": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptor", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertydescriptor", |
| "tags": [ |
| "web-features:snapshot:ecmascript-5", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "5" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "4" |
| }, |
| "firefox_android": "mirror", |
| "ie": [ |
| { |
| "version_added": "9" |
| }, |
| { |
| "version_added": "8", |
| "version_removed": "9", |
| "partial_implementation": true, |
| "notes": "In Internet Explorer 8, this was only supported on DOM objects and with some non-standard behaviors. This was later fixed in Internet Explorer 9." |
| } |
| ], |
| "nodejs": { |
| "version_added": "0.10.0" |
| }, |
| "oculus": "mirror", |
| "opera": { |
| "version_added": "12" |
| }, |
| "opera_android": { |
| "version_added": "12" |
| }, |
| "safari": { |
| "version_added": "5" |
| }, |
| "safari_ios": { |
| "version_added": "5" |
| }, |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| }, |
| "getOwnPropertyDescriptors": { |
| "__compat": { |
| "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptors", |
| "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.getownpropertydescriptors", |
| "tags": [ |
| "web-features:snapshot:ecmascript-2017", |
| "web-features:object-object" |
| ], |
| "support": { |
| "bun": { |
| "version_added": "1.0.0" |
| }, |
| "chrome": { |
| "version_added": "54" |
| }, |
| "chrome_android": "mirror", |
| "deno": { |
| "version_added": "1.0" |
| }, |
| "edge": { |
| "version_added": "15" |
| }, |
| "firefox": { |
| "version_added": "50" |
| }, |
| "firefox_android": "mirror", |
| "nodejs": { |
| "version_added": "7.0.0" |
| }, |
| "oculus": "mirror", |
| "opera": "mirror", |
| "opera_android": "mirror", |
| "safari": { |
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| } |
| } |
| } |
| } |
