26 lines
633 B
TypeScript
26 lines
633 B
TypeScript
// #docregion
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// #docregion pure
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import {Flyer} from './heroes';
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import {Pipe, PipeTransform} from 'angular2/core';
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@Pipe({ name: 'flyingHeroes' })
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export class FlyingHeroesPipe implements PipeTransform {
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transform(allHeroes:Flyer[]) {
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// #docregion filter
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return allHeroes.filter(hero => hero.canFly);
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// #enddocregion filter
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}
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}
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// #enddocregion pure
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/////// Identical except for the pure flag
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// #docregion impure
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// #docregion pipe-decorator
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@Pipe({
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name: 'flyingHeroes',
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pure: false
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})
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// #enddocregion pipe-decorator
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export class FlyingHeroesImpurePipe extends FlyingHeroesPipe {}
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// #enddocregion impure
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