Pluralize

Pluralize and singularize any word.

This was forked from https://github.com/plurals/pluralize. It was refactored into TS and there is now a build step added. Everything else remains the same.

Installation

npm install pluralize --save
yarn add pluralize

Node (ES2015 Module)

import pluralize from 'pluralize';

Node

const pluralize = require('pluralize');

AMD

define(function (require, exports, module) {
  const pluralize = require('pluralize');
});

`<script>` tag

<script src="pluralize.js"></script>

Why?

This module uses a pre-defined list of rules, applied in order, to singularize or pluralize a given word. There are many cases where this is useful, such as any automation based on user input. For applications where the word(s) are known ahead of time, you can use a simple ternary (or function) which would be a much lighter alternative.

Usage

word: string The word to pluralize
count: number How many of the word exist
inclusive: boolean Whether to prefix with the number (e.g. 3 ducks)

Examples:

pluralize('test'); //=> "tests"
pluralize('test', 0); //=> "tests"
pluralize('test', 1); //=> "test"
pluralize('test', 5); //=> "tests"
pluralize('test', 1, true); //=> "1 test"
pluralize('test', 5, true); //=> "5 tests"
pluralize('蘋果', 2, true); //=> "2 蘋果"

// Example of new plural rule:
pluralize.plural('regex'); //=> "regexes"
pluralize.addPluralRule(/gex$/i, 'gexii');
pluralize.plural('regex'); //=> "regexii"

// Example of new singular rule:
pluralize.singular('singles'); //=> "single"
pluralize.addSingularRule(/singles$/i, 'singular');
pluralize.singular('singles'); //=> "singular"

// Example of new irregular rule, e.g. "I" -> "we":
pluralize.plural('irregular'); //=> "irregulars"
pluralize.addIrregularRule('irregular', 'regular');
pluralize.plural('irregular'); //=> "regular"

// Example of uncountable rule (rules without singular/plural in context):
pluralize.plural('paper'); //=> "papers"
pluralize.addUncountableRule('paper');
pluralize.plural('paper'); //=> "paper"

// Example of asking whether a word looks singular or plural:
pluralize.isPlural('test'); //=> false
pluralize.isSingular('test'); //=> true

License

MIT

stephenjason89/pluralize