Check ECMAScript Identifier Names

estree-util-is-identifier-name is a focused utility from the unified collective designed to determine whether a given string or Unicode code point can constitute a valid ECMAScript (JavaScript) identifier name. The package, currently at stable version 3.0.0, provides functions like `name` to validate full identifier strings, and `start` and `cont` to check individual code points for starting or continuing an identifier. Major releases, such as v3.0.0, typically coincide with updates to Node.js compatibility (now requiring Node.js 16+) and significant internal changes like the adoption of `exports` for module resolution and enhanced Unicode support for astrals and code points. A key differentiator is its strict adherence to ECMAScript identifier rules, including optional support for JSX identifiers, while intentionally not handling language keywords. It's an ESM-only package since v2.0.0 and ships with full TypeScript types.