babel-plugin-transform-es2015-shorthand-properties is a Babel plugin that transforms ES2015 shorthand properties into their explicit equivalents. This plugin is essential for ensuring compatibility with older JavaScript environments that do not support the shorthand notation. For example, it converts { x, y } into { x: x, y: y }. By expanding shorthand properties, this plugin bridges the gap between modern and legacy JavaScript, preventing runtime errors and ensuring broader code compatibility.