Evaling async function definitions

I work on an IDE for Javascript that lets developers evaluate their code. In a modern Chrome console, I can run:

eval(`try{function foo3(){console.log("Hi")}} catch(err){console.log(err)}`) 

and foo3 will be defined and called fine. I can also run:

eval(`async function foo4(){console.log("Hi")}`) 

and foo4 will be defined and called fine. But when I run:

eval(`try{async function foo5(){console.log("Hi")}} catch(err) {console.log(err)}`) 

I get no error, but foo5 is not defined. Note that the difference between example 1 and example 3 is just "async" before "function". I would like foo5 to be defined. Clues greatly appreciated.

1 Answer

Well, you could invert your code slightly, to include the try/catch block, within your async function to get it going.

eval(`async function foo5() {try {console.log("Hi")} catch (err) { console.log(err)}}`); foo5();