TypeScript for Beginners - More methods on map

The video tutorial explains how to work with map iterators in TypeScript. It covers using the keys, values, and entries methods to access map data. The tutorial demonstrates converting iterators to arrays using the Array.from method, allowing for easier manipulation of map data. It also shows how to dynamically access keys and values, and how to handle map entries effectively.

What is the purpose of converting a map iterator into an array in TypeScript?

• To change the data type of the keys

• To directly modify the iterator

• To sort the keys alphabetically

• To enable looping through the elements

Which method is used to retrieve all keys from a map in TypeScript?

• map.fetchKeys()

• map.retrieveKeys()

• map.getKeys()

• map.keys()

How can you dynamically access values in a map using keys?

• By using the map.fetch() method with the key

• By using the map.retrieve() method with the key

• By using the map.access() method with the key

• By using the map.get() method with the key

What does the values method return when used on a map?

• A sorted list of values

• A list of entries

• An iterator of values

• An array of keys

What is the result of using the entries method on a map?

• It returns a sorted list of entries

• It returns an iterator of key-value pairs

• It returns an iterator of values

• It returns an iterator of keys