42 Questions
What does the given code do?
Replaces spaces, underscores, and hyphens in a Title Case string with hyphens
What is the purpose of 'coalesce(g, '')' in the given code?
Replaces the match groups with an empty string if they are NULL
What type of case is 'kebab-case' as mentioned in the code?
Snake Case
What is the purpose of 'regexp_replace(lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, ''))), '[ ext{\s}_-]+', sep, 'g')' in the given code?
Converts a Title Case string to kebab-case
The 'kebab-case' result is generated by replacing the space, underscore, and hyphen with a different separator.
True
The function 'coalesce(g, '')' is used to replace any occurrences of lowercase followed by uppercase letters in the given input.
False
The input 'in_name' is assumed to be in Title Case in the given code.
True
The function 'lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')))' converts the input to lowercase and replaces occurrences of lowercase followed by uppercase letters with a space.
True
Match the following regular expression functions with their purpose in the given code:
regexp_replace() = Replaces a substring that matches a regular expression lower() = Converts the input to lowercase coalesce() = Returns the first non-null expression among its arguments '([a-z]{1})([A-Z]{1})' = Matches occurrences of lowercase followed by uppercase letters
Match the following string transformations with their corresponding cases in the given code:
kebab-case = Replaces space, underscore, and hyphen with hyphen Title Case = Assumed input format for 'in_name' snake_case = Similar to kebab-case but replaces space, hyphen, or period by underscore lowercase = Conversion performed by the function 'lower()'
Match the following terms with their functions in the given code:
sep = Variable representing the separator to be used in the final result g = Represents the global modifier in regular expressions in_name = Input string to be transformed result = Variable storing the transformed output
Match the following string manipulation actions with their descriptions in the given code:
Replace space, underscore, and hyphen with a different separator = 'kebab-case' result Convert input to lowercase and replace occurrences of lowercase followed by uppercase letters with a space = 'lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')))' action Assume input is in Title Case and transform it accordingly = 'in_name' usage assumption Return first non-null expression among arguments = 'coalesce()' function usage
In which cases is it recommended to not use kebab case, as mentioned in the text?
When dealing with legacy codebases and the existing convention is camel case or snake case
What is the conclusion about kebab case in the text?
It is a naming convention that enhances readability, consistency, and accessibility
What is the purpose of the function 'lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')))' as mentioned in the text?
It replaces occurrences of lowercase followed by uppercase letters with a space
When might kebab case make a name more difficult to read, as mentioned in the text?
When the name is long or complex
What is the primary benefit of using kebab case for identifiers in programming and design?
Improved consistency in naming conventions
In what scenario should kebab case be avoided according to the text?
For single-word identifiers
Which of the following is NOT mentioned as a benefit of using kebab case?
Improved performance of web applications
What is the main purpose of using kebab case for file names, URLs, and CSS class names?
To distinguish between different words in a compound name
What type of identifiers do programming tools and IDEs often provide syntax highlighting and code completion for in kebab case?
JavaScript variable names
What is the potential impact of using kebab case for URLs on Search Engine Optimization (SEO)?
It can improve SEO by making URLs more descriptive and understandable for search engines
In rare cases, kebab case can make a name more difficult to read, especially for long or complex identifiers.
True
Legacy codebases where camel case or snake case is the dominant convention may not find it worth changing existing names to kebab case.
True
Kebab case is increasingly used in web development and other contexts where clarity and searchability are important.
True
If there is a conflict between kebab case and the established naming convention for a specific context, we should follow the established convention.
True
Kebab case is primarily used for identifiers in web development only.
False
One of the benefits of kebab case is that it can improve accessibility for users with screen readers.
True
There is no need to use kebab case for single-word identifiers.
True
Kebab case can potentially improve SEO for URLs by making them more descriptive and easier to understand for search engines.
True
Consistency in naming conventions across a codebase or design system is not promoted by kebab case.
False
Kebab case does not involve separating words with hyphens.
False
Match the programming convention with its description:
Kebab case = Naming convention involving hyphens to separate words Camel case = Naming convention where the first letter of each word is capitalized except the first word Snake case = Naming convention where words are separated by underscores Pascal case = Naming convention where each word is capitalized without any separators
Match the benefit with its description according to the text:
Readability = Improves readability by distinguishing between different words in a compound name. Consistency = Promotes consistency in naming conventions across a codebase or design system. SEO = Can improve search engine optimization for URLs by making them more descriptive and understandable. Accessibility = Enhances accessibility for users with screen readers by making it easier to identify and understand word boundaries.
Match the identifier with its recommended naming convention according to the text:
File names = Kebab case JavaScript variable names = Increasingly used kebab case CSS class names = Kebab case Single-word identifiers = No need for kebab case
Match the scenario with its recommendation regarding the use of kebab case:
Legacy codebases have dominant camel case = Not worth changing existing names to kebab case Conflict with established naming convention for a specific context = Follow the established convention Long or complex identifiers = Kebab case can make names more difficult to read Clarity and searchability are important = Increasingly used in web development and other contexts
Match the transformation action with its result in the given code:
regexp_replace('helloWorld', '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, '')) = 'hello World' lower('HELLO-WORLD') = 'hello-world' regexp_replace(lower('Hello_World'), '[ ext{\s}-]+', sep, 'g') = 'hello_world' coalesce(g, '') = Replace any occurrences of lowercase followed by uppercase letters with a space
Match the feature with the corresponding support for identifiers according to the text:
Syntax highlighting and code completion = Programming tools and IDEs often provide support for kebab case names Improved development productivity = Programming tools and IDEs often provide support for kebab case names Improved SEO for URLs = Kebab case can improve search engine optimization for URLs
Match the following case conventions with their impact on readability and searchability:
Kebab case = Enhances readability, consistency, and accessibility Camel case = May make a name more difficult to read, especially for long or complex identifiers Snake case = Legacy codebases may not find it worth changing existing names to this convention Mixed case = Can improve accessibility for users with screen readers
Match the following scenarios with their considerations for using kebab case, as mentioned in the text:
Conflict with established naming convention = Follow the established convention instead of kebab case Readability issues = Consider using mixed case or abbreviations in these cases Legacy codebases = May not be worth changing existing names to kebab case Increasing use in web development = Enhances clarity and searchability
Match the following string transformation actions with their purpose in the given code:
lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, ''))) = Converts the input to lowercase and replaces occurrences of lowercase followed by uppercase letters with a space coalesce(g, '') = Used to replace any occurrences of lowercase followed by uppercase letters in the given input regexp_replace(lower(regexp_replace(in_name, '([a-z]{1})([A-Z]{1})', coalesce(g, '') || ' ' || coalesce(g, ''))), '[
_ -]+', sep, 'g') = Replaces the space, underscore, and hyphen with a different separator
Match the following benefits with their descriptions of using kebab case for identifiers in programming and design:
Enhancing readability = Makes code, URLs, and other identifiers easier to understand and use Improving SEO = Potentially improves search engine optimization for URLs Enhancing accessibility = Can improve accessibility for users with screen readers Consistency in naming conventions = Promotes consistency in naming conventions across a codebase or design system
Test your knowledge of SQL regular expressions and text manipulation with this quiz. The quiz covers topics such as replacing characters, modifying case, and handling different delimiters in SQL queries.
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