How do you visualize a TypeScript dependency graph?

A proposed command-line utility, ts-graph, uses the TypeScript Compiler API to scan a project and produce a file-level dependency graph by identifying which TypeScript files import others. It begins by creating a Program, which provides a coherent representation of parsed project code, then retrieves and filters SourceFile objects to focus on application files rather than declaration or external library files. For each source file, the tool recursively traverses its Abstract Syntax Tree using a visitor function, detects ImportDeclaration nodes, extracts their module specifiers, and stores the resulting relationships in a map from files to dependency lists. This simple graph-building pattern can serve as a foundation for more advanced tooling, including architecture visualization, circular-dependency detection, unused-module and impact analysis, bundling, IDE features, and future symbol-level dependency analysis.

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