@angular-ru/cdk/pipes

  • MutableTypePipe, MutableTypePipeModule

import { MutableTypePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';
import { Immutable } from '@angular-ru/typings';
import { Data } from './data';

@NgModule({
    // ..
    imports: [MutableTypePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <data [list]="data | mutable"></data>
    `
})
export class AppComponent {
    public data: Immutable<Data[]> = [];
}
import { Immutable } from '@angular-ru/typings';
import { MutableTypePipe } from '@angular-ru/cdk/pipes';

const obj: Immutable<{ a: string }> = { a: 'str' };
const mutableObj = new MutableTypePipe().transform(obj); // return { a: string }

mutableObj.a = 'str2';

expect(obj.a).toEqual('str2');
expect(mutableObj.a).toEqual('str2');

  • DeepPathPipe, DeepPathPipeModule

import { DeepPathPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [DeepPathPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | deepPath : 'a.b.c' }}
    ` // view: 'hello'
})
export class AppComponent {
    public data = { a: { b: { c: 'hello' } } };
}

  • DefaultValuePipe, DefaultValuePipeModule

import { DefaultValuePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [DefaultValuePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | defaultValue : '-' }}
    ` // view: '-'
})
export class AppComponent {
    public data = null;
}

  • IsNotNullPipe, IsNotNullPipeModule

import { IsNotNullPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [IsNotNullPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | isNotNull }}
    ` // false
})
export class AppComponent {
    public data = null;
}

  • IsNilPipe, IsNilPipeModule

import { IsNilPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [IsNilPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | isNil }}
    ` // true
})
export class AppComponent {
    public data = null;
}

  • IsObjectPipe, IsObjectPipeModule

import { IsObjectPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [IsObjectPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | isObject }}
    ` // true
})
export class AppComponent {
    public data = {};
}

  • DetectBrowserPipe, DetectBrowserPipeModule

import { DetectBrowserPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [DetectBrowserPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ browser | detectBrowser }}
    ` // Chrome 84
})
export class AppComponent {
    public browser =
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36';
}

  • IsStringPipe, IsStringPipeModule

import { IsStringPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [IsStringPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | isString }}
    ` // true
})
export class AppComponent {
    public data = 'hello world';
}

  • IsArrayPipe, IsArrayPipeModule

import { IsArrayPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [IsArrayPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | isArray }}
    ` // true
})
export class AppComponent {
    public data = [];
}

  • ToStringPipe, ToStringPipeModule

import { ToStringPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [ToStringPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | toString }}
    ` // "1,2"
})
export class AppComponent {
    public data = [1, 2];
}

  • ToNumberPipe, ToNumberPipeModule

import { ToNumberPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [ToNumberPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | toNumber }}
    ` // 12
})
export class AppComponent {
    public data = '12';
}

  • FormatDatePipe, FormatDatePipeModule

import { FormatDatePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [FormatDatePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | formatDate }}
    ` // 11.12.2018
})
export class AppComponent {
    public data = 1544532097434;
}

  • SafePipe, SafePipeModule

import { SafePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [SafePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <div [innerHTML]="data | safe : 'html'"></div>
    `
})
export class AppComponent {
    public data = '<p>Hello world</p>';
}

  • NumberFormatPipe, NumberFormatPipeModule

import { NumberFormatPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [NumberFormatPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | numberFormat }}
    ` // 1 500 300,5
})
export class AppComponent {
    public data = 1500300.5;
}

  • HttpReplacerPipe, HttpReplacerPipeModule

import { HttpReplacerPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [HttpReplacerPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | httpReplacer }}
    ` // hello.com/new
})
export class AppComponent {
    public data = 'https://www.hello.com/new/index.php';
}

  • TakeFirstItemPipe, TakeFirstItemPipeModule

import { TakeFirstItemPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [TakeFirstItemPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | takeFirstItem }}
    ` // 1
})
export class AppComponent {
    public data = [1, 2];
}

  • TakeSecondItemPipe, TakeSecondItemPipeModule

import { TakeSecondItemPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [TakeSecondItemPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | takeSecondItem }}
    ` // 2
})
export class AppComponent {
    public data = [1, 2];
}

  • DateToNativePipe, DateToNativePipeModule

import { DateToNativePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [DateToNativePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ data | dateNative }}
    ` // Date(type)
})
export class AppComponent {
    public data = '27.02.2019 14:25';
}

  • EntrySingleSetPipe, EntrySingleSetPipeModule

import { EntrySingleSetPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [EntrySingleSetPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ 'a' | entrySingleSet : setList }}
    ` // true
})
export class AppComponent {
    public setList = new Set(['a']);
}

  • MarkByFilterPipe, MarkByFilterPipeModuleModule

import { MarkByFilterPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [MarkByFilterPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ 'hello word' | markByFilter : filter }}
    ` // hello <span style="background: #ffdd2d">world</span>
})
export class AppComponent {
    public filter = 'world';
}

  • DisplayItemPipe, DisplayItemPipeModule

import { DisplayItemPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ...
    imports: [DisplayItemPipeModule]
})
export class AppModule {}

@Component({
    // ...
    template: `
        {{ entity | displayItem : 'value.name' }}
    ` // A
})
export class AppComponent {
    public entity = { value: { name: 'A' } };
}

  • ObjectSizePipe, ObjectSizePipeModule

import { ObjectSizePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [ObjectSizePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <!-- result: 2 -->
        {{ [{ a: 1 }, { a: 2 }] | objectSize }}

        <!-- result: 3 -->
        {{ { a: 1, b: 2, c: 3 } | objectSize }}
    `
})
export class AppComponent {}

  • MergeCssClassesPipe, MergeCssClassesPipeModule

import { MergeCssClassesPipe } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [MergeCssClassesPipe]
})
export class AppModule {}

@Component({
    //...
    template: `
        <div [ngClass]="'some-class' | mergeCssClasses : ['class-a', 'class-b'] : { enabled: isEnabled }">
            <!--
            result:
            {
                'some-class': true,
                'class-a': true,
                'class-b': true,
                enabled: false
            }
            -->
        </div>
    `
})
export class AppComponent {
    public isEnabled = false;
}

  • JoinPipe, JoinPipeModule

import { JoinPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [JoinPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ [1, 2] | join }}
        <!-- result: 1,2 -->
    `
})
export class AppComponent {}
import { JoinPipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [JoinPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <p [innerHTML]="[1, 2] | join : { separator: '<br>' }"></p>
        <!-- result html: 1<br>2 -->
    `
})
export class AppComponent {}
import { JoinPipeModule, JoinMapTransformer } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [JoinPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <p
            [innerHTML]="
                [{ a: 1 }, { a: 2 }, { a: 3 }, { a: 4 }] | join : { separator: '::', mapTransformer: transformer }
            "
        ></p>
        <!-- result html: 1 :: 10 :: 11 :: 100 -->
    `
})
export class AppComponent {
    public transformer: JoinMapTransformer<{ a: number }> = (item: { a: number }): string => item.a.toString(2);
}

  • BracePipe, BracePipeModule

import { BracePipeModule } from '@angular-ru/cdk/pipes';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [BracePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <span>Edit selected records {{ count | brace }}</span>
        <!--Edit selected records (42)-->
    `
})
export class AppComponent {
    public count: number = 42;
}

  • FilterUniquePipe, FilterUniquePipeModule

import { FilterUniquePipeModule } from '@angular-ru/cdk/pipes';
import { PlainObject } from '@angular-ru/cdk-typings';
import { Component, NgModule } from '@angular/core';

@NgModule({
    // ..
    imports: [FilterUniquePipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <pre>{{ objects | filterUnique : 'name' | json }}</pre>
        <!-- [{ name: 'a'}, { name: 'b'}] -->

        <pre>{{ numbers | filterUnique | json }}</pre>
        <!-- [1, 2, 3, 4, 5] -->
    `
})
export class AppComponent {
    public objects: PlainObject = [{ name: 'a' }, { name: 'a' }, { name: 'b' }];
    public numbers: number[] = [1, 2, 3, 4, 5, 5, 4];
}

  • TypeAsPipe, TypeAsPipeModule

import { TypeAs } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [TypeAsPipeModule]
})
export class AppModule {}

type SomeType = { a: number };

@Component({
    //...
    template: `
        <p *ngIf="notTyped | typeAs : typeSample as typed">
            {{ typed.a }}
            <!-- OK -->
            {{ typed.b }}
            <!-- Error: Property 'b' does not exist on type 'SomeType' -->
        </p>
    `
})
export class AppComponent {
    public notTyped: any = { a: 1 };
    public typeSample!: SomeType;
}

  • AtPipe, AtPipeModule

import { AtPipeModule } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [AtPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <p>{{ someArray | at : 0 }}</p>
        <!-- "first" -->
        <p>{{ someArray | at : -1 }}</p>
        <!-- "last" -->
    `
})
export class AppComponent {
    public someArray = ['first', 'second', 'third', 'last'];
}

  • HasItems, HasManyItems, HasNoItems, HasOneItem, HasAtMostOneItem

  • HasItemsModule, HasManyItemsModule, HasNoItemsModule, HasOneItemModule, HasAtMostOneItemModule

import {
    HasItemsModule,
    HasManyItemsModule,
    HasNoItemsModule,
    HasOneItemModule,
    HasAtMostOneItemModule
} from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [HasItemsModule, HasManyItemsModule, HasNoItemsModule, HasOneItemModule, HasAtMostOneItemModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <pre *ngIf="someArray | hasItems"><!-- true --></pre>
        <pre *ngIf="someArray | hasManyItems"><!-- false --></pre>
        <pre *ngIf="someArray | hasNoItems"><!-- false --></pre>
        <pre *ngIf="someArray | hasOneItem"><!-- true --></pre>
        <pre *ngIf="someArray | hasAtMostOneItem"><!-- true --></pre>
    `
})
export class AppComponent {
    public someArray: number[] = [1];
}

  • IncludesPipe, IncludesPipeModule

import { IncludesPipeModule } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [IncludesPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <p *ngIf="someArray | includes : 'first'">first</p>
        <p *ngIf="someArray | includes : 'fourth'">
            <!-- this will not appear -->
            fourth
        </p>
    `
})
export class AppComponent {
    public someArray = ['first', 'second', 'third', 'last'];
}

  • HasPipe, HasPipeModule

import { HasPipeModule } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [HasPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <p *ngIf="someSet | has : 'first'">first</p>
        <p *ngIf="someSet | has : 'fourth'">
            <!-- this will not appear -->
            fourth
        </p>
    `
})
export class AppComponent {
    public someSet = new Set(['first', 'second', 'third', 'last']);
}

  • CoerceBooleanPipe, CoerceBooleanPipeModule

import { CoerceBooleanPipeModule } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [CoerceBooleanPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        <mat-select [multiple]="multiple | coerceBoolean">first</p>
    `
})
export class AppComponent {
    @Input() public multiple?: string | number | boolean;
}

  • DeclinationOfNumberPipe, DeclinationOfNumberPipeModule

import { DeclinationOfNumberPipeModule } from '@angular-ru/cdk/pipes';

@NgModule({
    // ..
    imports: [DeclinationOfNumberPipeModule]
})
export class AppModule {}

@Component({
    //...
    template: `
        {{ numberVal | declinationOfNumber : ['арбуз', 'арбуза', 'арбузов'] }}
    `
})
export class AppComponent {
    @Input() public numberVal: number;
}
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