String functions (join, split, format) in Terraform - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to join the list of strings with a comma.

Terraform

joined_string = join(",", [1])

Drag options to blanks, or click blank then click option'

Aformat

Bsplit

Cvar.list_of_strings

Dconcat

Attempts:

3 left

💡 Hint

Common Mistakes

Using a function name instead of the variable holding the list.

Forgetting to provide the list argument.

The join function combines a list of strings into one string separated by the given delimiter. Here, var.list_of_strings is the list to join.

2fill in blank

medium

Complete the code to split the string into a list using a space as separator.

Terraform

split([1], var.input_string)

Drag options to blanks, or click blank then click option'

A" "

B","

C"-"

D";"

Attempts:

3 left

💡 Hint

Common Mistakes

Using a comma or other separator instead of a space.

Not quoting the separator string.

The split function divides a string into a list using the given separator. Here, a space character " " is used to split words.

3fill in blank

hard

Fix the error in the format function to insert the variable correctly.

Terraform

formatted_string = format("Hello, %s!", [1])

Drag options to blanks, or click blank then click option'

Avar.name[0]

Bvar.name.split

Cvar.names

Dvar.name

Attempts:

3 left

💡 Hint

Common Mistakes

Using an index or method call instead of the variable itself.

Passing a list instead of a string.

The format function replaces %s with the string variable var.name. Using var.name directly is correct.

4fill in blank

hard

Fill both blanks to join a list with a dash and then split it back into a list.

Terraform

joined = join([1], var.words)
split_list = split([2], joined)

Drag options to blanks, or click blank then click option'

A"-"

B","

D";"

Attempts:

3 left

💡 Hint

Common Mistakes

Using different separators for join and split.

Using commas or semicolons instead of dashes.

First, join the list var.words with a dash "-". Then split the joined string back by the same dash "-" to get the original list.

5fill in blank

hard

Fill all three blanks to format a string with two variables and then split the result by a space.

Terraform

formatted = format("%s %s", [1], [2])
split_result = split([3], formatted)

Drag options to blanks, or click blank then click option'

Avar.first_name

Bvar.last_name

C" "

D"-"

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of variables.

Using wrong separator for split.

The format function inserts var.first_name and var.last_name into the string separated by a space. Then split divides the formatted string by space " " to get the list of names.