effect-io-ai

Package: effect
Module: SchemaAST

SchemaAST.isUndefined

Narrows an AST to Undefined.

When to use

Use to identify AST nodes that represent exactly the JavaScript undefined value.

See

• isVoid for narrowing AST nodes that represent TypeScript void instead of exact undefined

Signature

declare const isUndefined: (ast: AST) => ast is Undefined

Source

Since v4.0.0