Access result of previous promise inside a second

Question

I'm using the return pattern to prevent me from making promise ugly cascade. Here is an exemple, I'm calling two function one after the other myfunction1 and myfunction2

myfunction1().then((value1) => {
  return myfunction2()
}).then((value2) => {
  console.log(value1)
}).catch((err) => {
  console.error(err)
})

How can I access value1 inside the then of the seconde function ?

Answer 1

You must pass it through your chain. That's why I started using async/await:

try {
    var value1 = await myfunction1();
    var value2 = await myFunction2();
    console.log(value1)
} catch (err) {
    console.error(err)
}

Answer 2

you have to "chain" your promises like this:

myfunction1().then((value1) => {
  return myfunction2().then((value2) => {
    console.log(value1)
  })
}).catch((err) => {
  console.error(err)
}