@agape/string
toSingular Function
Returns the singular form of a plural word.
API
function toSingular( word: string): stringtoSingular
stringReturns the singular form of a plural word.
@paramword:
string Plural word to be converted to singular.
@returns
stringDescription
Returns the singular form of a plural word.
Handles common English pluralization patterns such as:
- ies → y
- es → base (for s, x, z, ch, sh endings)
- s → base (general fallback)
- known irregulars (e.g., children → child)
Preserves the casing of the original input, including acronyms or title case.
Usage
toSingular("cities"); // "city"
toSingular("boxes"); // "box"
toSingular("children"); // "child"
toSingular("teeth"); // "tooth"
toSingular("dogs"); // "dog"
toSingular("BUZZES"); // "BUZZ"
toSingular("IDs"); // "ID"