babel报错Invalid typeof value: array, 是bug还是特性？-灵析社区

原因是写了typeof xxx == 'array', 虽然不能这么用，但是也不应报错啊，这是babel的bug还是特性？ Invalid typeof value: array at createTypeAnnotationBasedOnTypeof (C:\Front\fe\node_modules\@babel\types\lib\builders\flow\createTypeAnnotationBasedOnTypeof.js:29:9) at inferAnnotationFromBinaryExpression (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:107:10) at getConditionalAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:138:20) at getTypeAnnotationBindingConstantViolations (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:35:20) at NodePath._default (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:22:14) at NodePath._getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:77:22) at NodePath.getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:41:15) at NodePath.ConditionalExpression (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferers.js:117:49) at NodePath._getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:77:22) at NodePath.getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:41:15) at NodePath.VariableDeclarator (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferers.js:62:27) at NodePath._getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:77:22) at NodePath.getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:41:15) at getTypeAnnotationBindingConstantViolations (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:44:28) at NodePath._default (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\inferer-reference.js:22:14) at NodePath._getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:77:22) at NodePath.getTypeAnnotation (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:41:15) at NodePath.isGenericType (C:\Front\fe\node_modules\@babel\traverse\lib\path\inference\index.js:136:21) at PluginPass.ForOfStatement (C:\Front\fe\node_modules\@babel\plugin-transform-for-of\lib\index.js:143:48) at newFn (C:\Front\fe\node_modules\@babel\traverse\lib\visitors.js:159:14) at NodePath._call (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:46:20) at NodePath.call (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:36:17) at NodePath.visit (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:82:31) at TraversalContext.visitQueue (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:86:16) at TraversalContext.visitMultiple (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:61:17) at TraversalContext.visit (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:107:19) at traverseNode (C:\Front\fe\node_modules\@babel\traverse\lib\traverse-node.js:22:17) at NodePath.visit (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:88:52) at TraversalContext.visitQueue (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:86:16) at TraversalContext.visitSingle (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:65:19) at TraversalContext.visit (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:109:19) at traverseNode (C:\Front\fe\node_modules\@babel\traverse\lib\traverse-node.js:22:17) at NodePath.visit (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:88:52) at TraversalContext.visitQueue (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:86:16) at TraversalContext.visitSingle (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:65:19) at TraversalContext.visit (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:109:19) at traverseNode (C:\Front\fe\node_modules\@babel\traverse\lib\traverse-node.js:22:17) at NodePath.visit (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:88:52) at TraversalContext.visitQueue (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:86:16) at TraversalContext.visitMultiple (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:61:17) at TraversalContext.visit (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:109:19) at traverseNode (C:\Front\fe\node_modules\@babel\traverse\lib\traverse-node.js:22:17) at NodePath.visit (C:\Front\fe\node_modules\@babel\traverse\lib\path\context.js:88:52) at TraversalContext.visitQueue (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:86:16) at TraversalContext.visitMultiple (C:\Front\fe\node_modules\@babel\traverse\lib\context.js:61:17)