@babel/plugin-proposal-pipeline-operator enables the use of the pipeline operator in your JavaScript code, allowing you to chain function calls in a more readable and intuitive manner. This Babel plugin transforms the proposed pipeline operator syntax (e.g., value |> fn1 |> fn2) into standard JavaScript, ensuring compatibility across different environments. By using this plugin, developers can explore and utilize the functional programming style offered by the pipeline operator before it's standardized in JavaScript.