Manage Noun Forms

pluralizer

The pluralizer is a default shared instance of the Pluralizer class. It comes preloaded with standard English rules, irregular forms, and uncountable nouns.

Features

• Convert words between singular and plural forms.
• Built-in support for irregular forms (e.g. child → children).
• Handles uncountable nouns (e.g. fish, information).
• Modify rules dynamically at runtime:
  • Add pluralization or singularization rules.
  • Add irregular forms.
  • Add uncountable words or regex patterns.

Example Usage

Extending Rules

Since pluralizer is a shared instance, modifications to it at runtime affect all consumers:

import { pluralizer } from 'toolbox-x/pluralizer';

// Add a custom plural rule
pluralizer.addPluralRule(/(foo)$/i, '$1bars');

// Add a custom singular rule
pluralizer.addSingularRule(/(bars)$/i, '$1');

// Add an uncountable noun
pluralizer.addUncountable('luggage');

// Add an irregular word
pluralizer.addIrregular('cactus', 'cacti');

See Also

• Pluralizer class — low‑level API for custom instances.
• formatUnitWithPlural — Simple utility for formatting units with pluralization with just "s".
• verbalizer - Similar utility for verb form manipulation.