嵌套异步/等待JavaScript

Question

Is this valid async/await logic: calling try/catch from within another try/catch?

//within async function...

try { 
    await asyncFunctionFirst();
    } catch (errFirst) {
          try {
              await asyncFunctionSecond();              
          } catch (errSecond) {
              // return errSecond response
          }
      //return errFirst response          
    } 
//return response ok 

Answer 1

Yes, it's valid syntax. However I would not write it like this. Rather use

try { 
    await asyncFunctionFirst();
    return …; // response ok 
} catch (errFirst) {
    try {
        await asyncFunctionSecond();
        return …; // errFirst response
    } catch (errSecond) {
        return …; // errSecond response
    }
}

(if you would also want to catch exceptions from the … parts - if not, your version is fine, for alternatives see here )