Javascript pending promises returns promise despite resolved data

Asked Mar 01 '19 at 09:39

Active Mar 01 '19 at 09:39

Viewed 23 times

I have a function which resolves in the first then:

var a_p = sc.getAllPatientData()
                      .then(res => {
                        console.log(res) // logs {data:array[4]}
                        return res}).then(res=>{return res.data})
                      .catch(error => {console.log(error)});

But the var a_p returns a pending promise. I do not know how to resolve this to extract the data. I would like to make it return the {data:array[4]} object seeing as it has clearly fulfilled

asked Mar 01 '19 at 09:39

bell_pepper

The data is retrieved asynchronously; there is no way to make it behave as if it was retrieved synchronously. You can use `await`, but that's only syntax sugar on top of `.then`. – CertainPerformance Mar 01 '19 at 09:40
how would I use await to make it return the data? – bell_pepper Mar 01 '19 at 09:41
Use the `await` keyword in front of a Promise – CertainPerformance Mar 01 '19 at 09:42
I have done that... `.then(async res => { await res console.log(res) return res.data}`but it still returns a promise – bell_pepper Mar 01 '19 at 09:51
If you do it like that, sure, `async` functions return Promises too – CertainPerformance Mar 01 '19 at 09:51
Could you please point me in the right direction? – bell_pepper Mar 01 '19 at 09:54

Javascript pending promises returns promise despite resolved data

0 Answers0