pre-visit

Utility function to visit all or some nodes of a generic tree, where children of a node are found in the children property. A visitor is applied before visiting the children and siblings, hence it is calle pre-visit.

Besides a visitor you can provide a predicate to filter nodes.

It works fine with all kinds of trees, I use it mainly as a typed and more feature rich replacement to unist-util-visit to visit remark trees.

Content

• Content
• What is this?
• When should I use this?
• Install
• Use

What is this?

This package provides a fully typed utility to visit trees and apply a visitor before visiting other nodes.

When should I use this?

If you want to work with trees and even be able to transform them, while visiting.

Install

This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:

npm install pre-visit

Use

This is still in very early alpha, hence, I can only provide very little documentation.

Use at your own risk.