Key Concepts

Review core concepts you need to learn to master this subject

Immutable Lists

var programmingLanguages = listOf("C#", "Java", "Kotlin", "Ruby")

An immutable list represents a group of elements with read-only operations.

It can be declared with the term listOf, followed by a pair of parentheses containing elements that are separated by commas.

Lesson 1 of 3

What you'll create

Portfolio projects that showcase your new skills

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How you'll master it

Stress-test your knowledge with quizzes that help commit syntax to memory

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