Getting the values for a specific key from all objects in an array

Question

I\'m running an express.js app that has a few apis feeding data to dropdown boxes. The data returned is in the form:

  [
    {
        key: \'blah\',
                


        

Answer 1

Pure Javascript ES6

array.map(value => value.key);

Underscore/Lodash

_.map(value,'key')