Angular pluralSingular pipe

A custom and simple plural-singular pipe for Angular+

This is the code of the pipe:

 ./plural-singular.pipe.ts

        import { Pipe, PipeTransform } from '@angular/core';

        @Pipe({
        name: 'pluralSingular'
        })
        export class PluralSingularPipe implements PipeTransform {
            transform(number: number, singularText: string, pluralText: string = null): string {
                let pluralWord = pluralText? pluralText : `${singularText}s`;
                return number > 1? `${number} ${pluralWord}` : `${number} ${singularText}` ;
            }
        }

You can copy the files into your own project and import CustomPipesModule to your app.module and it will be available in all your app.

Usage

FOR REGULAR NOUNS

Most singular nouns form the plural by adding -s. So the pipe adds it by default if no second parameter is passed

<p> {{ someNumberVariable | pluralSingular:'adult' }} </p>

> output: 1 adult - 2 adults

FOR OTHER CASES

A singular noun ending in s, x, z, ch, sh makes the plural by adding-es.

A singular noun ending in a consonant and then y makes the plural by dropping the y and adding-ies.

Irregular nouns.

<p> {{ someNumberVariable | pluralSingular:'city':'cities }} </p>

> output: 1 city - 2 cities

<p> {{ someNumberVariable | pluralSingular:'bus':'buses }} </p>

> output: 1 bus - 2 buses 

<p> {{ someNumberVariable | pluralSingular:'child':'children}} </p>

> output: 1 child - 2 children

It can be used for the Spanish language.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT