esrecurse

What is esrecurse?

The esrecurse npm package is designed for recursively walking through ECMAScript/JavaScript syntax trees. It is commonly used for static analysis, code transformation, and other tasks that involve traversing and manipulating the structure of JavaScript code.

What are esrecurse's main functionalities?

Visiting nodes in an AST

This feature allows you to visit each node in an abstract syntax tree (AST) and perform actions based on the node type. In the code sample, `Literal` nodes are logged to the console.

const esrecurse = require('esrecurse');
esrecurse.visit(ast, {
  Literal(node) {
    console.log(node.value);
  }
});

Custom visitor keys

This feature allows you to define custom visitor keys for node types that are not part of the standard ECMAScript syntax. In the code sample, a `CustomNode` type is visited, and its `customProperty` is logged.

const esrecurse = require('esrecurse');
const visitorKeys = {
  CustomNode: ['customProperty']
};
esrecurse.visit(ast, {
  CustomNode(node) {
    console.log(node.customProperty);
  }
}, visitorKeys);

Other packages similar to esrecurse

estraverse

Estraverse is a similar package that provides a simple interface for traversing and optionally replacing nodes in an AST. It is similar to esrecurse but has a more extensive API and additional features like the ability to replace nodes.

acorn-walk

Acorn-walk is a part of the Acorn JS parser ecosystem and provides functionality for walking the AST generated by Acorn. It is similar to esrecurse but is tailored specifically for ASTs generated by Acorn and may not be as generic.

README

The README file is missing