Using promise function inside Javascript Array map

Map your array to promises and then you can use Promise.all() function:

var promises = [obj1, obj2].map(function(obj){
  return db.query('obj1.id').then(function(results){
     obj1.rows = results
     return obj1
  })
})
Promise.all(promises).then(function(results) {
    console.log(results)
})

You are not returning your Promises inside the map function.

[obj1, obj2].map(function(obj){
  return db.query('obj1.id').then(function(results){
     obj1.rows = results
     return obj1
  })
})

Using promise function inside Javascript Array map

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