What is the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of most words (articles, conjunctions, and prepositions under 4 letters are usually left lowercase): 'The Quick Brown Fox'. Sentence case capitalizes only the first letter of the first word and proper nouns: 'The quick brown fox'. Title Case is used for headings, book titles, and article titles. Sentence case is used for most UI labels, captions, and body text.

What is camelCase and when should I use it?

camelCase combines words by capitalizing the first letter of each word except the first: 'myVariableName'. It is the dominant convention for variable and function names in JavaScript, Java, Swift, and most C-family languages. Use it for variable names, function names, and object property names in code.

What is the difference between camelCase and PascalCase?

PascalCase (also called UpperCamelCase) is identical to camelCase except the first word is also capitalized: 'MyClassName'. PascalCase is the standard for class names, component names in React, and type names in TypeScript. camelCase is for variables and functions; PascalCase is for types and classes.

What is snake_case and kebab-case used for?

snake_case joins words with underscores and uses all lowercase: 'my_variable_name'. It is the standard in Python (variables, functions, files), Ruby, and SQL column names. kebab-case joins words with hyphens: 'my-variable-name'. It is used in CSS class names, HTML attributes, URL slugs, and command-line flags. Neither is valid in most programming languages as an identifier because hyphens are subtraction operators.

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Text case — frequently asked questions

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