 | Array5,203 tests/built-ins/Array/ | 99% ChakraCore: 98%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100% |
 | ArrayBuffer160 tests/built-ins/ArrayBuffer/ | 94% ChakraCore: 95%JavaScriptCore: 85%SpiderMonkey: 99%V8: 99% |
 | ArrayIterator.prototype46 tests/built-ins/ArrayIteratorPrototype/ | 96% ChakraCore: 87%JavaScriptCore: 96%SpiderMonkey: 100%V8: 100% |
 | AsyncFromSyncIterator.prototype44 tests/built-ins/AsyncFromSyncIteratorPrototype/ | 75% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | AsyncFunction30 tests/built-ins/AsyncFunction/ | 98% ChakraCore: 93%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | AsyncGeneratorFunction38 tests/built-ins/AsyncGeneratorFunction/ | 75% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | AsyncGenerator.prototype90 tests/built-ins/AsyncGeneratorPrototype/ | 74% ChakraCore: 0%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100% |
 | AsyncIterator.prototype8 tests/built-ins/AsyncIteratorPrototype/ | 75% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Atomics460 tests/built-ins/Atomics/ | 41% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 74%V8: 90% |
 | BigInt134 tests/built-ins/BigInt/ | 50% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 100%V8: 100% |
 | Boolean96 tests/built-ins/Boolean/ | 99% ChakraCore: 98%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100% |
 | DataView910 tests/built-ins/DataView/ | 82% ChakraCore: 55%JavaScriptCore: 73%SpiderMonkey: 100%V8: 99% |
 | Date1,388 tests/built-ins/Date/ | 99% ChakraCore: 99%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |
 | decodeURI106 tests/built-ins/decodeURI/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | decodeURIComponent106 tests/built-ins/decodeURIComponent/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | encodeURI58 tests/built-ins/encodeURI/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | encodeURIComponent58 tests/built-ins/encodeURIComponent/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Error74 tests/built-ins/Error/ | 98% ChakraCore: 95%JavaScriptCore: 97%SpiderMonkey: 100%V8: 100% |
 | eval16 tests/built-ins/eval/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Function889 tests/built-ins/Function/ | 92% ChakraCore: 84%JavaScriptCore: 88%SpiderMonkey: 98%V8: 100% |
 | GeneratorFunction40 tests/built-ins/GeneratorFunction/ | 95% ChakraCore: 90%JavaScriptCore: 95%SpiderMonkey: 95%V8: 100% |
 | Generator.prototype114 tests/built-ins/GeneratorPrototype/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | global58 tests/built-ins/global/ | 98% ChakraCore: 93%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Infinity12 tests/built-ins/Infinity/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | isFinite32 tests/built-ins/isFinite/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | isNaN32 tests/built-ins/isNaN/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Iterator.prototype8 tests/built-ins/IteratorPrototype/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | JSON234 tests/built-ins/JSON/ | 94% ChakraCore: 85%JavaScriptCore: 92%SpiderMonkey: 100%V8: 99% |
 | Map285 tests/built-ins/Map/ | 100% ChakraCore: 99%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |
 | MapIterator.prototype22 tests/built-ins/MapIteratorPrototype/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Math546 tests/built-ins/Math/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | NaN12 tests/built-ins/NaN/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | NativeErrors146 tests/built-ins/NativeErrors/ | 96% ChakraCore: 84%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Number562 tests/built-ins/Number/ | 99% ChakraCore: 96%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100% |
 | Object6,194 tests/built-ins/Object/ | 100% ChakraCore: 99%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | parseFloat114 tests/built-ins/parseFloat/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | parseInt118 tests/built-ins/parseInt/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Promise942 tests/built-ins/Promise/ | 83% ChakraCore: 79%JavaScriptCore: 79%SpiderMonkey: 76%V8: 99% |
 | Proxy479 tests/built-ins/Proxy/ | 97% ChakraCore: 94%JavaScriptCore: 96%SpiderMonkey: 98%V8: 98% |
 | Reflect274 tests/built-ins/Reflect/ | 100% ChakraCore: 99%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | RegExp2,836 tests/built-ins/RegExp/ | 74% ChakraCore: 50%JavaScriptCore: 88%SpiderMonkey: 68%V8: 89% |
 | RegExpStringIterator.prototype34 tests/built-ins/RegExpStringIteratorPrototype/ | 50% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 100%V8: 100% |
 | Set374 tests/built-ins/Set/ | 100% ChakraCore: 99%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |
 | SetIterator.prototype22 tests/built-ins/SetIteratorPrototype/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | SharedArrayBuffer114 tests/built-ins/SharedArrayBuffer/ | 50% ChakraCore: 0%JavaScriptCore: 0%SpiderMonkey: 100%V8: 100% |
 | String2,135 tests/built-ins/String/ | 98% ChakraCore: 93%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100% |
 | StringIterator.prototype14 tests/built-ins/StringIteratorPrototype/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | Symbol162 tests/built-ins/Symbol/ | 96% ChakraCore: 85%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |
 | ThrowTypeError26 tests/built-ins/ThrowTypeError/ | 81% ChakraCore: 65%JavaScriptCore: 73%SpiderMonkey: 85%V8: 100% |
 | TypedArray2,100 tests/built-ins/TypedArray/ | 69% ChakraCore: 55%JavaScriptCore: 60%SpiderMonkey: 61%V8: 98% |
 | TypedArrayConstructors1,360 tests/built-ins/TypedArrayConstructors/ | 58% ChakraCore: 44%JavaScriptCore: 43%SpiderMonkey: 51%V8: 95% |
 | undefined12 tests/built-ins/undefined/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100% |
 | WeakMap176 tests/built-ins/WeakMap/ | 99% ChakraCore: 99%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |
 | WeakSet150 tests/built-ins/WeakSet/ | 99% ChakraCore: 99%JavaScriptCore: 99%SpiderMonkey: 100%V8: 100% |