TypeScript for Beginners - More methods on map

TypeScript for Beginners - More methods on map

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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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 for easier manipulation and logging results to the console. It also highlights the dynamic retrieval of values using keys and iterating over map entries.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

To directly modify the map

To enable looping through the keys

To sort the keys alphabetically

To delete keys from the map

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is used to retrieve the value associated with a specific key in a map?

fetch()

get()

retrieve()

getValue()

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

A map of key-value pairs

An iterator of values

An array of keys

A sorted list of entries

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you loop through all entries in a map using TypeScript?

By converting the iterator to an array

By using the map directly

By using a while loop

By using a do-while loop

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

A sorted array of keys

An iterator of key-value pairs

A list of all values

A list of all keys