JavaScript Data Structures

array

object

set

grid

An ordered list of objects

An unordered list of objects

A collection of (key, value) pairs

elements listed in a grid form

var groceries = ["milk" "sugar" "eggs" "cake"];

var groceries = ["milk, sugar, eggs, cake"];

var groceries = "milk, sugar, eggs, cake";

var groceries = ["milk", "sugar", "eggs", "cake"];

.index

indexOf

inIt

findElement

true

false

pop(6)

push(6)

add(5,6)

pop( )

a collection of unique objects that are not in a specific order.

a collection of ordered items.

a collection of (key, value) pairs

Elements in a row and column table

["hello", "goodbye"]

{"hello", "goodbye"}

{"hello", "hello", "goodbye"}

{

Jeremy: "123-4567",

Zach: "333-3333"

}

A collection of unique items with no particular order

A collection of (key, value) pairs

A collection of items each stored at a specific (row, column) location

An unordered list with unique values

An unordered collection of items

An ordered collection of items

A collection of (key, value) pairs

A collection of unique objects that are not in a specific order