Using promise function inside Javascript Array map

by

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)
})

More Related Contents:

  1. How to use promise in forEach loop of array to populate an object
  2. Using setInterval() with a .map method in array and returning as a promise
  3. Promise.all is returning an array of undefined and resolves before being done
  4. Does an array contain a specific item? [duplicate]
  5. How to get the difference between two arrays of objects in JavaScript
  6. What’s wrong with awaiting a promise chain?
  7. How to delete an item from state array?
  8. Maximum size of an Array in Javascript
  9. Difference between defer().promise and Promise
  10. JavaScript, Node.js: is Array.forEach asynchronous?
  11. Completely removing duplicate items from an array
  12. Node JS Promise.all and forEach
  13. How to remove element from an array in JavaScript?
  14. How to flatten nested array in javascript? [duplicate]
  15. sort Javascript array by two numeric fields
  16. Why are exceptions used for rejecting promises in JS? [closed]
  17. Merge duplicate objects in array of objects
  18. Create object from array
  19. How to generate range of numbers from 0 to n in ES2015 only?
  20. How do I handle errors with promises?
  21. How do I extract even elements of an Array?
  22. How to store a byte array in Javascript
  23. Replace element at specific position in an array without mutating it
  24. push() a two-dimensional array
  25. Javascript array search and remove string?
  26. TypeScript enum to object array
  27. Using lodash to compare jagged arrays (items existence without order)
  28. best way to generate empty 2D array
  29. Access object property in array of objects
  30. javascript – Convert array to string while preserving brackets

Leave a Comment