@babel/plugin-transform-runtime

Helpers

This feature allows Babel to transform code by extracting common helper functions into shared modules to reduce code duplication in the output.

"use strict";\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Foo = function Foo() {\n  _classCallCheck(this, Foo);\n};

Polyfills for instance methods

This feature enables the use of instance methods like 'includes' on arrays, which are part of the ECMAScript specifications but may not be available in all environments.

import \"core-js/stable\";\nimport \"regenerator-runtime/runtime\";\n\n[1, 2, 3].includes(2);

Built-ins

This feature allows the use of new built-in objects like Promise, which are part of the ECMAScript specifications but may not be natively supported in all environments.

import \"core-js/stable\";\nimport \"regenerator-runtime/runtime\";\n\nvar promise = new Promise();

Generator functions

This feature allows the use of generator functions, which can be used to perform asynchronous operations in a synchronous-like manner.

import \"core-js/stable\";\nimport \"regenerator-runtime/runtime\";\n\nfunction* aGenerator() {\n  yield 1;\n  yield 2;\n  yield 3;\n}