Angular 10 I18nPluralPipe API

In this article, we are going to see what is I18nPluralPipe in Angular 10 and how to use it. The I18nPluralPipe is a map that takes a string value that pluralizes according to given rules.

Syntax:

{{ value |  i18nPlural : map [ : rule]}}

NgModule: Module used by I18nPluralPipe is:

• CommonModule

Approach: 

• Create an angular app to be used.
• There is no need for any import for the I18nPluralPipe to be used.
• In app.component.ts define the variables that takes the I18nPluralPipe value.
• In app.component.html use the above syntax with ‘|’ symbol to make I18nPluralPipe element.
• Serve the angular app using ng serve to see the output.

Input value:

• value: it takes a number value.

Parameters:

• pluralMap: It takes an object value.
• locale: It takes a string value.

Example 1:

app.component.ts

import { Component, OnInit } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html'
})
export class AppComponent {

    // Color array
    colors: any[] = ['red','green','blue'];

    // Map from which I18nPluralPipe takes the value
    gfg:
        {[k: string]: string} = {
            '=0': 'No color',
            '=1': 'one color',
            'other': '# colors'
        };
}

app.component.html

<!-- In Below Code I18nPluralPipe is used -->
<div>there are: {{ colors.length | i18nPlural: gfg }}</div>

Output:

Example 2:

app.component.ts

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html'
})
export class AppComponent {

    // Language array
    language: any[] = [];

    // Map from which I18nPluralPipe
    // takes the value
    gfg:
        {[k: string]: string} = {
            '=0': 'zero languages',
            '=1': 'one language',
            'other': '# languages'
        };
}

app.component.html

<!-- In Below Code I18nPluralPipe is used -->
<div>there are: {{ language.length | i18nPlural: gfg }}</div>

Output:

Reference: https://angular.io/api/common/I18nPluralPipe