20 hours- Medium
Free online content available in this course.
course.header.alt.is_video
course.header.alt.is_certifying
Got it!Last updated on 4/27/23
Utilize collections and optionals
Evaluated skills
- Utilize collections and optionals
Question 1
To declare an empty array, one can write:
Careful, there are several correct answers.[]
[Int]
[Int: String] ()
[Double]()
Question 2
When is the order of elements important?
In an array because a key is used to retrieve the values
In an array because an index is used to retrieve the values
In a dictionary because a key is used to retrieve the values
In a dictionary because an index is used to retrieve the values
Question 3
To browse/walk an array, we use:
a while loop
a for-in loop
an if/else statement
a dictionary
Ever considered an OpenClassrooms diploma?
- Up to 100% of your training program funded
- Flexible start date
- Career-focused projects
- Individual mentoring
Find the training program and funding option that suits you best
