Add `prefixCharacters` option

Added

• New prefixCharacters option to retain characters during case conversion. Useful for something like _$ to keep "private".

Add small words option

Added

• Add a smallWords to an optional config object provided to titleCase #282

Fixed

• Fixes an issue where a word ending in . would be ignored inside quotes #266

ESM support

Changed

• Removes CommonJS support and adds ESM import support for node 16+
• Adds an optional locale as the second argument (now defaults to host environment using toLocaleUpperCase)

ESM support

Changed

• Removes CommonJS support and adds ESM import support for node 16+
• Adds an optional locale as the second argument (now defaults to host environment using toLocale{Lower,Upper}Case

ESM support

Changed

• Removes CommonJS support and adds ESM import support for node 16+
• Adds an optional locale as the second argument (now defaults to host environment using toLocale{Lower,Upper}Case

Huge ESM rewrite

Changed:

• The package is now only supported using ESM imports in node.js
• Merged all core case changing libraries into change-case
• Added support for internationalization using unicode regex features
• Renamed paramCase to kebabCase

Removed:

• Removed ability to specify word split and strip regexes

Added:

• Exposed a new split function for accessing behavior of word splitting before case change
• Added locale and separateNumbers options
• Added pascalSnakeCase support
• Added change-case/keys for transforming objects into the requested case

Deprecated packages:

• camel-case (use change-case)
• capital-case (use change-case)
• constant-case (use change-case)
• dot-case (use change-case)
• header-case (use change-case -> trainCase)
• is-lower-case (prefer manual: input.toLocaleLowerCase(locale) === input)
• is-upper-case (prefer manual: input.toLocaleUpperCase(locale) === input)
• lower-case-first (prefer manual: input.charAt(0).toLowerCase() + input.slice(1))
• lower-case (prefer manual: input.toLowerCase() or input.toLocaleLowerCase(locale))
• no-case (use change-case`)
• param-case (use change-case -> kebabCase)
• pascal-case (use change-case)
• path-case (use change-case)
• sentence-case (use change-case)
• snake-case (use change-case)
• upper-case-first (prefer manual: input.charAt(0).toLowerCase() + input.slice(1))
• upper-case (prefer manual: input.toUpperCase() or input.toLocaleUpperCase(locale))

Fix Overlapping RegExp Splits

Fixed

• Fixes #76, e.g. IQueryAArgs broke because the first A was matched and didn't pick up the subsequent AA overlapping

Merge Transform

Added

• Expose pascalCaseTransformMerge as a helper function

ES5 Support

Fixed

• Add support for ES5 environments to all packages

Merge Transform

Added

• Expose camelCaseTransformMerge as a transform option