You're probably talking about an object const hashtable = {}.
In JS, everything is an object (like in Ruby), and here you can store any key/value pair.
Objects are very useful in any occasion unless you just need a single variable or a list (array). Of course I'm not extending to classes and O.
You access object's data using the key you need const age = person.age //or person['age'] and set it's value the same way person.name = "john" //person["name"] = "john".
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You're probably talking about an object
const hashtable = {}.In JS, everything is an object (like in Ruby), and here you can store any key/value pair.
Objects are very useful in any occasion unless you just need a single variable or a list (array). Of course I'm not extending to classes and O.
You access object's data using the key you need
const age = person.age //or person['age']and set it's value the same wayperson.name = "john" //person["name"] = "john".