 | AggregateError60 tests/AggregateError/ | 85% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 97%QuickJS: 97%engine262: 100% |
 | Arbitrary module namespace names32 tests/arbitrary-module-namespace-names/ | 71% ChakraCore: 56%JavaScriptCore: 100%SpiderMonkey: 100%V8: 94%Moddable XS: 44%QuickJS: 44%engine262: 56% |
 | Array.prototype.flat30 tests/Array.prototype.flat/ | 86% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | Array.prototype.flatMap39 tests/Array.prototype.flatMap/ | 86% ChakraCore: 5%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 97%QuickJS: 100%engine262: 100% |
 | Atomic Operations740 tests/Atomics/ | 55% ChakraCore: 0%JavaScriptCore: 72%SpiderMonkey: 72%V8: 99%Moddable XS: 71%QuickJS: 72%engine262: 0% |
 | Atomics.waitAsync200 tests/Atomics.waitAsync/ | 14% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | BigInt2,541 tests/BigInt/ | 79% ChakraCore: 5%JavaScriptCore: 94%SpiderMonkey: 94%V8: 96%Moddable XS: 90%QuickJS: 92%engine262: 82% |
 | Class Fields Private2,001 tests/class-fields-private/ | 90% ChakraCore: 38%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100%Moddable XS: 98%QuickJS: 99%engine262: 97% |
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 | Class Private Methods and Getter/Setters3,401 tests/class-methods-private/ | 88% ChakraCore: 20%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 99%engine262: 100% |
 | Class Static Fields Private687 tests/class-static-fields-private/ | 86% ChakraCore: 5%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
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 | Nullish Coalescing Expression50 tests/coalesce-expression/ | 82% ChakraCore: 16%JavaScriptCore: 100%SpiderMonkey: 96%V8: 96%Moddable XS: 96%QuickJS: 96%engine262: 76% |
 | Dynamic Import1,128 tests/dynamic-import/ | 67% ChakraCore: 18%JavaScriptCore: 77%SpiderMonkey: 75%V8: 75%Moddable XS: 72%QuickJS: 79%engine262: 74% |
 | `export * as namespace from module`38 tests/export-star-as-namespace-from-module/ | 77% ChakraCore: 47%JavaScriptCore: 95%SpiderMonkey: 95%V8: 95%Moddable XS: 42%QuickJS: 95%engine262: 74% |
 | FinalizationRegistry.prototype.cleanupSome32 tests/FinalizationRegistry.prototype.cleanupSome/ | 42% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 94%V8: 0%Moddable XS: 100%QuickJS: 0%engine262: 100% |
 | Global this145 tests/globalThis/ | 68% ChakraCore: 13%JavaScriptCore: 54%SpiderMonkey: 86%V8: 66%Moddable XS: 86%QuickJS: 86%engine262: 86% |
 | Hashbang Grammar35 tests/hashbang/ | 93% ChakraCore: 63%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 91% |
 | import.meta46 tests/import.meta/ | 83% ChakraCore: 43%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 70%QuickJS: 100%engine262: 70% |
 | Intl.DateTimeFormat: dateStyle and timeStyle options20 tests/Intl.DateTimeFormat-datetimestyle/ | 44% ChakraCore: 10%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.DateTimeFormat-dayPeriod24 tests/Intl.DateTimeFormat-dayPeriod/ | 44% ChakraCore: 8%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.DateTimeFormat-fractionalSecondDigits20 tests/Intl.DateTimeFormat-fractionalSecondDigits/ | 44% ChakraCore: 10%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.DisplayNames88 tests/Intl.DisplayNames/ | 44% ChakraCore: 7%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.ListFormat162 tests/Intl.ListFormat/ | 43% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.Locale276 tests/Intl.Locale/ | 32% ChakraCore: 0%JavaScriptCore: 72%SpiderMonkey: 75%V8: 75%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.NumberFormat Unified API134 tests/Intl.NumberFormat-unified/ | 43% ChakraCore: 3%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.RelativeTimeFormat156 tests/Intl.RelativeTimeFormat/ | 43% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | Intl.Segmenter156 tests/Intl.Segmenter/ | 29% ChakraCore: 1%JavaScriptCore: 100%SpiderMonkey: 3%V8: 100%Moddable XS: 0%QuickJS: 0%engine262: 0% |
 | ECMAScript ⊃ JSON8 tests/json-superset/ | 86% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | Legacy RegExp features52 tests/legacy-regexp/ | 14% ChakraCore: 0%JavaScriptCore: 92%SpiderMonkey: 0%V8: 4%Moddable XS: 0%QuickJS: 0%engine262: 4% |
 | Logical Assignment Operators150 tests/logical-assignment-operators/ | 82% ChakraCore: 12%JavaScriptCore: 95%SpiderMonkey: 93%V8: 97%Moddable XS: 88%QuickJS: 100%engine262: 87% |
 | Numeric Separator Literal318 tests/numeric-separator-literal/ | 90% ChakraCore: 68%JavaScriptCore: 100%SpiderMonkey: 100%V8: 99%Moddable XS: 100%QuickJS: 100%engine262: 64% |
 | Object.fromEntries50 tests/Object.fromEntries/ | 86% ChakraCore: 4%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | Optional Catch Binding10 tests/optional-catch-binding/ | 86% ChakraCore: 20%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 80% |
 | Optional Chaining112 tests/optional-chaining/ | 87% ChakraCore: 48%JavaScriptCore: 100%SpiderMonkey: 98%V8: 98%Moddable XS: 100%QuickJS: 98%engine262: 68% |
 | Promise.allSettled204 tests/Promise.allSettled/ | 84% ChakraCore: 3%JavaScriptCore: 100%SpiderMonkey: 94%V8: 94%Moddable XS: 100%QuickJS: 100%engine262: 100% |
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 | Promise.prototype.finally56 tests/Promise.prototype.finally/ | 96% ChakraCore: 82%JavaScriptCore: 100%SpiderMonkey: 96%V8: 96%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | proxy-missing-checks6 tests/proxy-missing-checks/ | 86% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | RegExp s (dotAll) flag34 tests/regexp-dotall/ | 73% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 94%Moddable XS: 53%QuickJS: 71%engine262: 94% |
 | RegExp lookBehind38 tests/regexp-lookbehind/ | 71% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 95% |
 | RegExp Match Array Indices56 tests/regexp-match-indices/ | 57% ChakraCore: 4%JavaScriptCore: 100%SpiderMonkey: 100%V8: 96%Moddable XS: 0%QuickJS: 4%engine262: 96% |
 | RegExp named groups capturing194 tests/regexp-named-groups/ | 83% ChakraCore: 61%JavaScriptCore: 98%SpiderMonkey: 99%V8: 43%Moddable XS: 90%QuickJS: 95%engine262: 93% |
 | RegExp Unicode Property Escapes1,092 tests/regexp-unicode-property-escapes/ | 64% ChakraCore: 24%JavaScriptCore: 100%SpiderMonkey: 100%V8: 74%Moddable XS: 26%QuickJS: 100%engine262: 26% |
 | Shared Memory822 tests/SharedArrayBuffer/ | 58% ChakraCore: 0%JavaScriptCore: 78%SpiderMonkey: 78%V8: 99%Moddable XS: 76%QuickJS: 78%engine262: 0% |
 | String Trimming108 tests/string-trimming/ | 85% ChakraCore: 11%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 85% |
 | String.prototype.matchAll32 tests/String.prototype.matchAll/ | 82% ChakraCore: 6%JavaScriptCore: 94%SpiderMonkey: 94%V8: 94%Moddable XS: 94%QuickJS: 100%engine262: 94% |
 | String.prototype.replaceAll82 tests/String.prototype.replaceAll/ | 84% ChakraCore: 0%JavaScriptCore: 98%SpiderMonkey: 98%V8: 98%Moddable XS: 98%QuickJS: 100%engine262: 98% |
 | Async Iteration and Generators1,076 tests/Symbol.asyncIterator/ | 86% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%QuickJS: 100%engine262: 100% |
 | Symbol.prototype.description16 tests/Symbol.prototype.description/ | 86% ChakraCore: 13%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 88%QuickJS: 100%engine262: 100% |
 | Tail Call Optimization42 tests/tail-call-optimization/ | 23% ChakraCore: 14%JavaScriptCore: 81%SpiderMonkey: 19%V8: 19%Moddable XS: 29%QuickJS: 0%engine262: 0% |
 | Top Level Await506 tests/top-level-await/ | 56% ChakraCore: 82%JavaScriptCore: 98%SpiderMonkey: 4%V8: 100%Moddable XS: 4%QuickJS: 4%engine262: 98% |
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