write a function that takes an array of objects as a parameter and returns an array of the objects' names. then, log that array to the console

Question

I'm working on javascript array and need to write a function that takes the first index of the array below and returns an array of the objects' names.

var animals = [
  { 
    name: 'murphy brown the dog',
    type: 'dog',
    age: 4,
    fav_toy: 'squeaky octopus'
  },
  { 
    name: 'mervin',
    type: 'cat',
    age: 1,
    fav_toy: 'catnip mouse'
  },
  { 
    name: 'peppercorn',
    type: 'cat',
    age: 3,
    fav_toy: 'lady bug pillow'
  },
  { 
    name: 'willa',
    type: 'cat',
    age: 4,
    fav_toy: 'jingle ball'
  },

]

Here's my function:

function getName(animals){
  console.log(animals[0]);
   return (animals[0]);
}

Your function does pretty much nothing so far, do some research about how javascript loops work before asking a new question. — Adam, Apr 05 '17 at 19:12
Possible duplicate of [From an array of objects, extract value of a property as array](http://stackoverflow.com/questions/19590865/from-an-array-of-objects-extract-value-of-a-property-as-array) — Heretic Monkey, Apr 05 '17 at 19:15

score 2 · Answer 1 · answered Apr 05 '17 at 19:10

2

You could use Array#map to return just the names from each object.

var animals = [{name:"murphy brown the dog",type:"dog",age:4,fav_toy:"squeaky octopus"},{name:"mervin",type:"cat",age:1,fav_toy:"catnip mouse"},{name:"peppercorn",type:"cat",age:3,fav_toy:"lady bug pillow"},{name:"willa",type:"cat",age:4,fav_toy:"jingle ball"}],
    res = animals.map(v => v.name); // ---> return only the name value of each object
  
    console.log(res); //               ---> log the result to the console

answered Apr 05 '17 at 19:10

kind user

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I just wonder what's that so wrong in the answer, that worths to be downvoted? – kind user Apr 05 '17 at 19:16
1

nice way of solving this using ES6. Thanks. – Sachin Kadam Apr 05 '17 at 19:20
@kinduser: When running this code, I get: 'Uncaught TypeError: animals.map is not a function at :1:15' I'm only six weeks into javascript, so pardon my ignorance, but what might this mean? – LMessing Apr 05 '17 at 22:59
@LMessing Probably the animals variable is not an array. – kind user Apr 05 '17 at 23:39

write a function that takes an array of objects as a parameter and returns an array of the objects' names. then, log that array to the console

1 Answers1