How to use stage 1 babel plugin in TypeScript

Question

ESNext Proposal: The Pipeline Operator is in stage 1 .

The Pipeline Operator has an babel plugin: babel-plugin-transform-pipeline

How to config tsconfig.json for using stage 1 babel-plugin in ts-node, webpack, rollup, karma, etc.

Answer 1

Normally you could chain typescript and babel compilation, but Pipeline Operator is not valid syntax for Typescript yet. There is github issue with feature proposition: https://github.com/Microsoft/TypeScript/issues/17718 .