JavaScript: How to reference an array inside an object inside an array and push something to it?

Question

I have the following array:

var ships = [ { locations: [], hits:0 },
              { different: [], different1:0 },
              { different3: [], different2:0 } ];

How do I reference the array "locations" inside the 1st object and push something to it? Thanks!

this will be a good read for you developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — Andrew L
– Andrew L, Commented Mar 13, 2018 at 19:59
@mihailm it would help us more if you shared more of your code. Are you looping over ships? — Andrew L
– Andrew L, Commented Mar 13, 2018 at 20:03

Ele · Accepted Answer · 2018-03-13 19:59:10Z

1

You can use index access or Destructuring assignment

Index access

var ships = [ { locations: [], hits:0 },
              { different: [], different1:0 },
              { different3: [], different2:0 } ];
              
ships[0].locations.push("Ele from SO");

console.log(ships)

Destructuring assignment

var ships = [ { locations: [], hits:0 },
              { different: [], different1:0 },
              { different3: [], different2:0 } ];
              
var [obj] = ships;
obj.locations.push("Ele from SO");

console.log(ships)

answered Mar 13, 2018 at 19:59

Ele

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Comments

SaiKD · Accepted Answer · 2018-03-13 20:01:05Z

0

It should be

ships[0].locations.push(newItem);

answered Mar 13, 2018 at 20:01

SaiKD

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1 Comment

blurfus Over a year ago

A little explanation to the original poster (and future readers) is always going to make your answers better

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