Allow parsing of BigInt literals

hast utility to check if a link element is “Body OK”

Allow parsing of the module assertion attributes in the import statement

Allow parsing of import.meta

Allow parsing of Decimal, Binary, Hex and Octal literals that contain a Numeric Literal Separator

Allow parsing of the U+2028 LINE SEPARATOR and U+2029 PARAGRAPH SEPARATOR in JS strings

Allow parsing of object rest/spread

Allow parsing of optional properties

Allow parsing of class properties

Allow parsing of '#foo in obj' brand checks

Allow parsing of the logical assignment operators

A JSON Schema to let editors (e.g., VS Code) syntax-check YARRRML files.

Allow parsing of async generator functions

hast utility to check if a node has a property

Allow parsing of optional catch bindings

Allow parsing of top-level await in modules

Allow parsing of class static blocks

Three-pass MDX linter used by LVGL CI: @mdx-js/mdx syntax check, allowlist check against the Fumadocs + @lvgl/mdx-components registry, and per-component prop validation driven by zod schemas generated from the component source.

Check what’s defined in an estree scope

Parse regular expressions' unicodeSets (v) flag.