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This is an issue in TypeScript even with single-threaded code; it (always/sometimes?) assumes function calls won't affect the results of type narrowing tests: h
by peterkelly 4y ago
This is an issue in TypeScript even with single-threaded code; it (always/sometimes?) assumes function calls won't affect the results of type narrowing tests: https://github.com/microsoft/TypeScript/issues/9998 https://github.com/microsoft/TypeScript/issues/9998