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ChakraCoreJavaScriptCoreSpiderMonkeyV8Moddable XS
Current folder:Features21,857 tests
features
(source)
46%
ChakraCore: 17%JavaScriptCore: 27%SpiderMonkey: 42%V8: 58%Moddable XS: 86%
Folder:
AggregateError58 tests/AggregateError/
0%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 0%Moddable XS: 0%
Folder:
Array.prototype.flat28 tests/Array.prototype.flat/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Array.prototype.flatMap35 tests/Array.prototype.flatMap/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Atomic Operations486 tests/Atomics/
53%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 95%V8: 99%Moddable XS: 71%
Folder:
BigInt2,261 tests/BigInt/
58%
ChakraCore: 4%JavaScriptCore: 5%SpiderMonkey: 96%V8: 97%Moddable XS: 88%
Folder:
Class Fields Private1,803 tests/class-fields-private/
59%
ChakraCore: 39%JavaScriptCore: 40%SpiderMonkey: 40%V8: 76%Moddable XS: 98%
Folder:
Class Fields3,518 tests/class-fields-public/
43%
ChakraCore: 13%JavaScriptCore: 13%SpiderMonkey: 31%V8: 62%Moddable XS: 99%
Folder:
Class Private Methods and Getter/Setters3,307 tests/class-methods-private/
36%
ChakraCore: 20%JavaScriptCore: 20%SpiderMonkey: 20%V8: 20%Moddable XS: 99%
Folder:
Class Static Fields Private683 tests/class-static-fields-private/
39%
ChakraCore: 3%JavaScriptCore: 3%SpiderMonkey: 3%V8: 88%Moddable XS: 99%
Folder:
Class Static Fields Public140 tests/class-static-fields-public/
48%
ChakraCore: 24%JavaScriptCore: 22%SpiderMonkey: 22%V8: 71%Moddable XS: 100%
Folder:
Class Static Methods Private2,931 tests/class-static-methods-private/
28%
ChakraCore: 10%JavaScriptCore: 10%SpiderMonkey: 10%V8: 10%Moddable XS: 99%
Folder:
Nullish Coalescing Expression48 tests/coalesce-expression/
49%
ChakraCore: 16%JavaScriptCore: 100%SpiderMonkey: 16%V8: 95%Moddable XS: 16%
Folder:
Dynamic Import1,044 tests/dynamic-import/
71%
ChakraCore: 22%JavaScriptCore: 84%SpiderMonkey: 83%V8: 88%Moddable XS: 76%
Folder:
`export * as namespace from module`36 tests/export-star-as-namespace-from-module/
52%
ChakraCore: 44%JavaScriptCore: 22%SpiderMonkey: 22%V8: 94%Moddable XS: 77%
Folder:
Global this4 tests/globalThis/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Hashbang Grammar35 tests/hashbang/
92%
ChakraCore: 62%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
import.meta46 tests/import.meta/
75%
ChakraCore: 43%JavaScriptCore: 82%SpiderMonkey: 100%V8: 100%Moddable XS: 52%
Folder:
Intl.DateTimeFormat: dateStyle and timeStyle options20 tests/Intl.DateTimeFormat-datetimestyle/
20%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 100%Moddable XS: 0%
Folder:
Intl.DateTimeFormat-dayPeriod24 tests/Intl.DateTimeFormat-dayPeriod/
6%
ChakraCore: 8%JavaScriptCore: 8%SpiderMonkey: 8%V8: 8%Moddable XS: 0%
Folder:
Intl.DateTimeFormat-fractionalSecondDigits18 tests/Intl.DateTimeFormat-fractionalSecondDigits/
8%
ChakraCore: 11%JavaScriptCore: 11%SpiderMonkey: 11%V8: 11%Moddable XS: 0%
Folder:
Intl.DisplayNames88 tests/Intl.DisplayNames/
5%
ChakraCore: 6%JavaScriptCore: 6%SpiderMonkey: 6%V8: 6%Moddable XS: 0%
Folder:
Intl.ListFormat164 tests/Intl.ListFormat/
20%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 100%Moddable XS: 0%
Folder:
Intl.Locale198 tests/Intl.Locale/
19%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 95%Moddable XS: 0%
Folder:
Intl.NumberFormat Unified API124 tests/Intl.NumberFormat-unified/
20%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 1%V8: 100%Moddable XS: 0%
Folder:
Intl.RelativeTimeFormat152 tests/Intl.RelativeTimeFormat/
39%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 97%V8: 100%Moddable XS: 0%
Folder:
Intl.Segmenter146 tests/Intl.Segmenter/
0%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 0%Moddable XS: 0%
Folder:
ECMAScript ⊃ JSON8 tests/json-superset/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Numeric Separator Literal316 tests/numeric-separator-literal/
90%
ChakraCore: 67%JavaScriptCore: 87%SpiderMonkey: 100%V8: 99%Moddable XS: 100%
Folder:
Object.fromEntries48 tests/Object.fromEntries/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Optional Catch Binding10 tests/optional-catch-binding/
84%
ChakraCore: 20%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Optional Chaining78 tests/optional-chaining/
72%
ChakraCore: 53%JavaScriptCore: 100%SpiderMonkey: 53%V8: 100%Moddable XS: 53%
Folder:
Promise.allSettled184 tests/Promise.allSettled/
77%
ChakraCore: 2%JavaScriptCore: 96%SpiderMonkey: 92%V8: 100%Moddable XS: 97%
Folder:
Promise.prototype.finally48 tests/Promise.prototype.finally/
96%
ChakraCore: 100%JavaScriptCore: 87%SpiderMonkey: 95%V8: 100%Moddable XS: 100%
Folder:
proxy-missing-checks6 tests/proxy-missing-checks/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
RegExp s (dotAll) flag34 tests/regexp-dotall/
55%
ChakraCore: 0%JavaScriptCore: 94%SpiderMonkey: 0%V8: 100%Moddable XS: 82%
Folder:
RegExp lookBehind38 tests/regexp-lookbehind/
38%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 100%Moddable XS: 94%
Folder:
RegExp Match Array Indices26 tests/regexp-match-indices/
0%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 0%V8: 0%Moddable XS: 0%
Folder:
RegExp named groups capturing170 tests/regexp-named-groups/
65%
ChakraCore: 68%JavaScriptCore: 67%SpiderMonkey: 68%V8: 29%Moddable XS: 94%
Folder:
RegExp Unicode Property Escapes1,076 tests/regexp-unicode-property-escapes/
46%
ChakraCore: 24%JavaScriptCore: 80%SpiderMonkey: 26%V8: 73%Moddable XS: 26%
Folder:
Shared Memory602 tests/SharedArrayBuffer/
55%
ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 99%V8: 99%Moddable XS: 77%
Folder:
String Trimming104 tests/string-trimming/
78%
ChakraCore: 7%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 84%
Folder:
String.prototype.matchAll28 tests/String.prototype.matchAll/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
String.prototype.replaceAll78 tests/String.prototype.replaceAll/
19%
ChakraCore: 0%JavaScriptCore: 97%SpiderMonkey: 0%V8: 0%Moddable XS: 0%
Folder:
Async Iteration and Generators1,068 tests/Symbol.asyncIterator/
60%
ChakraCore: 0%JavaScriptCore: 67%SpiderMonkey: 67%V8: 67%Moddable XS: 99%
Folder:
Symbol.prototype.description14 tests/Symbol.prototype.description/
82%
ChakraCore: 14%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%
Folder:
Tail Call Optimization42 tests/tail-call-optimization/
40%
ChakraCore: 16%JavaScriptCore: 71%SpiderMonkey: 19%V8: 19%Moddable XS: 73%
Folder:
Top Level Await480 tests/top-level-await/
37%
ChakraCore: 85%JavaScriptCore: 2%SpiderMonkey: 2%V8: 2%Moddable XS: 95%
Folder:
Well-formed JSON.stringify2 tests/well-formed-json-stringify/
80%
ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100%