如何使用 babel 以编程方式将 es6 转换为 es5？

Question

I have a function which runs string as javascript code through eval() . It works fine if the string is es5 but doesn't work for es6 . I know babel can transport es6 to es5 but most of them use cases are done in compile stage. How can I use babel programmatically?

Answer 1

Babel has an API .

I assume you can do something like this:

eval(babel.transform(code, options).code)

However I would strongly reconsider that! First, eval is usually a very, very dangerous thing, and next babel is huge. You don't want to deliver that to a browser if you don't have to.