26 Questions
What does the given regular expression '([a-z]{1})([A-Z]{1})' match?
Pairs of lowercase followed by uppercase letters
What does the 'regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, ''))' function do?
Replaces occurrences of lowercase followed by uppercase with a space
What is the purpose of the regular expression '[ _-][a-zA-Z]{1}[ _-]' in the given code?
Identifies and replaces tabs, spaces, and hyphens followed by a single alphabetical character
What does the function 'lower(regexp_replace(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')), '[\t_-][a-zA-Z]{1}[\t_-]', ' '))' accomplish?
Converts all characters to lowercase and replaces single alphabetical characters preceded by tabs, underscores, and hyphens with spaces
The function 'regexp_match(in_name, '([a-z]{1})([A-Z]{1})')' identifies parts of text where a small letter is followed by an upper case letter.
True
The function 'lower(regexp_replace(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')), '[\s_-][a-zA-Z]{1}[\s_-]', ' '))' replaces standardizes '_' and '-' by space.
True
The regular expression '([a-z]{1})([A-Z]{1})' matches occurrences where a small case character is followed by an upper case character in the given code.
True
The function 'regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, ''))' does not introduce space for cases where a small character is followed by an upper case character.
False
Match the following functions with their respective purposes in the given code:
regexp_match(in_name, '([a-z]{1})([A-Z]{1})') = Identifies parts of text where a small character is followed by an upper case character lower(regexp_replace(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')), '[\s_-][a-zA-Z]{1}[\s_-]', ' ')) = Replaces standardizes '_' and '-' by space regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '') = Introduces space for cases from #1 and replaces (standardizes) _ and - by space to replace space, , - by defined separator regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')), '[\s-]+', sep, 'g' = Replaces (standardizes) _ and - by space to replace space
Match the following patterns with their respective descriptions in the given code:
'([a-z]{1})([A-Z]{1})' = Matches occurrences where a small case character is followed by an upper case character in the given code '[\s_-][a-zA-Z]{1}[\s_-]' = Replaces standardizes '' and '-' by space '[\s-]+' = Replaces (standardizes) _ and - by space to replace space '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '') = Identifies parts of text where a small letter is followed by an upper case letter
In programming, what does snake case refer to?
Writing words as a single string without spaces and separating them with underscores
What is one of the benefits of using snake case in programming?
Improving maintainability and readability
Which of the following programming languages widely use snake case?
Python, Ruby, and Go
What is the purpose of snake case in file naming and database table names?
To improve maintainability and readability
When should snake case be avoided for identifiers?
For single-word identifiers
What is one of the tool support benefits provided by snake case?
Providing syntax highlighting and code completion
Snake case involves separating words with hyphens.
False
Snake case improves maintainability by making the code harder to understand and modify.
False
Snake case promotes consistency in naming conventions across a codebase.
True
Snake case is used only in programming languages like Python and Ruby.
False
There is no need to use snake case for single-word identifiers.
True
Programming tools and IDEs often do not provide syntax highlighting and code completion for snake case names.
False
Match the following benefits of snake case with their descriptions:
Readability = Snake case improves readability by distinguishing between different words in a compound name. Maintainability = Snake case enhances maintainability by making code easier to understand and modify. Consistency = Snake case promotes consistency in naming conventions across a codebase. Self-Documentation = Snake case serves as self-documentation, providing additional information about the purpose of an identifier.
Match the programming languages with their usage of snake case:
Python = Widely uses snake case for identifiers. Ruby = Utilizes snake case naming convention for identifiers. Go = Adopts snake case as a naming convention for identifiers. JavaScript = Does not primarily use snake case for identifiers.
Match the following characteristics of snake case with their benefits:
Tool Support = Programming tools and IDEs often provide syntax highlighting and code completion for snake case names, improving development productivity. Single-word Identifiers = There is no need to use snake case for single-word identifiers. File Naming and Database Table Names = Snake case is also used in other contexts, such as file naming and database table names. Improves Readability = Snake case improves readability by distinguishing between different words in a compound name.
Match the following features of snake case with their purposes:
No Spaces = Involves writing words as a single string without spaces and separating them with underscores (_) Compound Names = Used to distinguish between different words in a compound name. Naming Convention = A convention for identifiers involving underscores to separate words. Additional Information = Serves as self-documentation, providing additional information about the purpose of an identifier.
Test your knowledge of snake_case conversion and regular expressions with this quiz. The quiz covers identifying parts of text where a lowercase character is followed by an uppercase character, introducing space for cases, and standardizing underscores and hyphens by space.
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