Are there dictionaries in JavaScript?

No, as of now JavaScript does not include a native Dictionary data type. So what is equivalent to a dictionary?

Objects in JavaScript are equivalent to a dictionary.

Objects in JavaScript are quite flexible and can be used to create key-value pairs. These objects are quite similar to dictionaries.

Dictionaries are commonly used as each value stored has a unique key, and through these keys, their respective values can be accessed. This allows a lot of fleixibility while reading and storing data.

Create a dictionary

var dict = {}; //dict is the name of the object

Add a value

dict[key] = value

Delete a value

delete dict.key;

Access a value

var value = dict.key;

Attributes of dictionaries

Dictionaries are unordered, meaning that any time you loop through a dictionary , you will go through every key. But you are not guaranteed to get them in any particular order.