rich-harris/estree-walker

estree-walker is a simple utility for traversing an ESTree-compliant AST, such as those generated by acorn. It allows developers to walk through an AST, providing hooks for entering and leaving nodes, and supports operations like skipping, replacing, or removing nodes during traversal. This tool is ideal for developers working with JavaScript code analysis or transformation, particularly those who need a lightweight and spec-resistant alternative to estraverse.