CODEWITHSUNDEEP
javascriptnode.js
orenong
orenong

Reputation: 54

how do I make an array inside an object in JS?

This is my code:

var Memory ={
 
  personAbove: "someone",
  words: wordsMem = []  <<<<<this thing doesn't work
  
}

how do I make it work? how do I make "words" refrence an array of words inside the "Memory" object?

Upvotes: 0

Views: 81

Answers (6)

Krishan Kumar
Krishan Kumar

Reputation: 403

var defaults = {
 backgroundcolor: '#000',
 color: '#fff',
 weekdays: ['sun','mon','tue','wed','thu','fri','sat']
};

Source: Array inside a JavaScript Object?

Upvotes: 0

Charlie Bamford
Charlie Bamford

Reputation: 1309

Objects are constructed using key value pairs, so "personAbove" is a key for the value "someone". Similarly an array is a value, so all you need is a key.

let Memory = {
  personAbove: "someone",
  words: []
}

Sets the empty array as the value of Memory.wordsMem. Alternatively, you can define the wordsMem variable first, then reference it as the value of the words key.

let wordsMem = [];
let Memory = {
  personAbove: "someone",
  words: wordsMem
}

This sets wordsMem and Memory.words to point at the same array, so performing array operations on one will update the other.

Upvotes: 0

xMayank
xMayank

Reputation: 1995

You can make array inside an object

var Memory ={
 
  personAbove: "someone",
  words: { 
     wordsMem:["a","b","c"] 
  }
  
}

to access values inside array Memory["words"]["wordsMem][0] //a

or

Memory.words.wordsMem[0] //a

Upvotes: 0

Shubham Verma
Shubham Verma

Reputation: 5054

You can do simply like this:

var Memory = {
      personAbove: "someone",
      words: [] //Now you can add any value is array
    }

You can parse this array value like this: Memory.words or Memory['words'] whichever you like.

You can read more about array and object here: https://eloquentjavascript.net/04_data.html

Upvotes: 0

Ehsan Nazeri
Ehsan Nazeri

Reputation: 801

try this one , it might help you

var Memory ={
 
  personAbove: "someone",
  words: { wordsMem : []  }
  
}

Upvotes: 0

habiiev
habiiev

Reputation: 440

var Memory = {
  personAbove: "someone",
  words: []
}

Upvotes: 1

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