Nudo Playground Write JavaScript with @nudo directives — or switch to a Call-Site Discovery preset to watch types get harvested from real usage and injected back into library analysis.
Basic Subtraction String Transform Array Map Object Property Conditional Return Function Composition Null Handling Type Guard Recursion Spread Operator Ternary Operator Default Parameter Discriminated Union Optional Chaining Truthiness Narrowing Array.isArray Narrowing in Operator Narrowing formatName — first precise signature wait — Promise resolve scan uniq — Set iteration flat — recursive calls + self-calls Promise Resolve Scan Set Iteration (for-of) Recursive Flatten in-operator Brand Check Share Run
Click "Run" to see inference results.