babel-plugin-transform-es2015-block-scoping transforms ES2015 let and const declarations into their ES5 equivalents using var. This plugin ensures that block-level scoping is maintained during the transformation. It is a crucial part of broader Babel configurations aiming to provide compatibility with older JavaScript environments by transpiling modern ES2015 code. By utilizing this plugin, developers can effectively manage variable scoping across different browsers and Node.js versions, mitigating potential runtime errors associated with let and const keywords.
The npm package babel-plugin-transform-es2015-block-scoping saw frequent releases between October 2015 and December 2017, with a peak in November 2015. After August 2017, the package had no further releases.
Babel-plugin-transform-es2015-block-scoping npm package downloads show a fluctuating trend. Downloads remained relatively stable around 6 million from March 2024 to May 2025, with spikes in October and November 2024. There was a clear increase in June and July 2025, followed by a drop in August 2025.