tsnode with new AsyncFunction gives error

Question

const AsyncFunction = Object.getPrototypeOf(async function () {}).constructor

const fn = new AsyncFunction('a','await blah')

So I'm trying to create a function using new AsyncFunction

This is working perfectly on the server. But when I do tsnode script.ts, I got

SyntaxError: await is only valid in async functions and the top level bodies of modules

for the exact line.

Somehow tsnode is creating a normal function instead of an async one. Is there any trick around this?

Answer 1

In my case, the exact fn defintion in string is:

`try{ ${js}\n return await ${fnName}(${args}) \n}catch(err){console.log('err ',err)}`

So if I get rid of await, it works ie

`try{ ${js}\n return ${fnName}(${args}) \n}catch(err){console.log('err ',err)}`

Still doesn't resolve the main tsnode async-fn creation problem, but this is a trick that unstucks me