| ChakraCoreJavaScriptCoreSpiderMonkeyV8Moddable XS |
|---|
 | Language Syntax39,639 tests language  | 79% ChakraCore: 56%JavaScriptCore: 76%SpiderMonkey: 81%V8: 84%Moddable XS: 97% |
|---|
 | Arguments Object457 tests/language/arguments-object/ | 74% ChakraCore: 54%JavaScriptCore: 72%SpiderMonkey: 73%V8: 73%Moddable XS: 100% |
| Automatic Semicolon Insertion204 tests/language/asi/ | 99% ChakraCore: 99%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Block Scope287 tests/language/block-scope/ | 88% ChakraCore: 67%JavaScriptCore: 76%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Comments81 tests/language/comments/ | 96% ChakraCore: 83%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Computed Property Names90 tests/language/computed-property-names/ | 94% ChakraCore: 93%JavaScriptCore: 93%SpiderMonkey: 93%V8: 93%Moddable XS: 100% |
| Destructuring30 tests/language/destructuring/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Directive Prologue62 tests/language/directive-prologue/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Eval Code259 tests/language/eval-code/ | 95% ChakraCore: 88%JavaScriptCore: 91%SpiderMonkey: 100%V8: 97%Moddable XS: 99% |
| export6 tests/language/export/ | 60% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0% |
| Expressions18,302 tests/language/expressions/ | 78% ChakraCore: 55%JavaScriptCore: 75%SpiderMonkey: 80%V8: 84%Moddable XS: 97% |
| Function Code287 tests/language/function-code/ | 99% ChakraCore: 99%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100%Moddable XS: 99% |
| Future Reserved Words85 tests/language/future-reserved-words/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Global Code73 tests/language/global-code/ | 81% ChakraCore: 75%JavaScriptCore: 91%SpiderMonkey: 80%V8: 80%Moddable XS: 80% |
| Identifier Resolution19 tests/language/identifier-resolution/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Identifiers289 tests/language/identifiers/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| import8 tests/language/import/ | 60% ChakraCore: 0%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0% |
| Keywords50 tests/language/keywords/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Line Terminators82 tests/language/line-terminators/ | 96% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 82%V8: 100%Moddable XS: 100% |
| literals845 tests/language/literals/ | 90% ChakraCore: 84%JavaScriptCore: 87%SpiderMonkey: 99%V8: 79%Moddable XS: 99% |
| Module Code1,066 tests/language/module-code/ | 58% ChakraCore: 62%JavaScriptCore: 53%SpiderMonkey: 53%V8: 55%Moddable XS: 66% |
| Punctuators22 tests/language/punctuators/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Reserved Words54 tests/language/reserved-words/ | 98% ChakraCore: 96%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 96% |
| Rest Parameters22 tests/language/rest-parameters/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Source Text2 tests/language/source-text/ | 80% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 0% |
| statementList160 tests/language/statementList/ | 98% ChakraCore: 91%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
| Statements16,502 tests/language/statements/ | 78% ChakraCore: 51%JavaScriptCore: 76%SpiderMonkey: 79%V8: 84%Moddable XS: 99% |
| Types211 tests/language/types/ | 98% ChakraCore: 94%JavaScriptCore: 98%SpiderMonkey: 100%V8: 100%Moddable XS: 98% |
| White Space84 tests/language/white-space/ | 100% ChakraCore: 100%JavaScriptCore: 100%SpiderMonkey: 100%V8: 100%Moddable XS: 100% |
Test262