babel-types

AST Node Builders

Builders are functions that help in creating AST nodes. This example demonstrates creating a binary expression node that represents the multiplication of two identifiers, 'a' and 'b'.

const t = require('babel-types');
const binaryExpression = t.binaryExpression('*', t.identifier('a'), t.identifier('b'));

AST Node Validators

Validators are functions that check if a node is of a certain type or meets certain criteria. In this example, the validator checks if the node is an identifier with the name 'a'.

const t = require('babel-types');
const isValid = t.isIdentifier(t.identifier('a'), { name: 'a' });

Type Conversion Utilities

Conversion utilities allow for the transformation of one type of node into another. This example shows converting a numeric literal into a string literal.

const t = require('babel-types');
const numericLiteral = t.numericLiteral(5);
const asStringLiteral = t.stringLiteral(`${numericLiteral.value}`);