babel-plugin-transform-builtin-extend

A Babel 6 plugin that enables extending built-in JavaScript types like Error and Array, which require special handling due to their native constructor behavior. It uses static analysis to detect class extensions of globals you specify, optionally with an approximate mode for IE <= 10. This plugin is a specialized tool for a now-legacy Babel version (6.x) and has been superseded by native class support in modern JavaScript and Babel 7+. No active maintenance since 2016.