"angular filter ngfor" Code Answer's
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angular filter ngfor
// In your component:
filterargs = {title: 'hello'};
items = [{title: 'hello world'}, {title: 'hello kitty'}, {title: 'foo bar'}];
In your template, you can pass string, number or object to your pipe to use to filter on:
// In your .html:
<li *ngFor="let item of items | myfilter:filterargs">
// In your pipe:
import { Pipe, PipeTransform } from '@angular/core';
@Pipe({
name: 'myfilter',
pure: false
})
export class MyFilterPipe implements PipeTransform {
transform(items: any[], filter: Object): any {
if (!items || !filter) {
return items;
}
// filter items array, items which match and return true will be
// kept, false will be filtered out
return items.filter(item => item.title.indexOf(filter.title) !== -1);
}
}
// Remember to register your pipe in app.module.ts;
// you no longer need to register the pipes in your @Component
import { MyFilterPipe } from './shared/pipes/my-filter.pipe';
@NgModule({
imports: [
..
],
declarations: [
MyFilterPipe,
],
providers: [
..
],
bootstrap: [AppComponent]
})
export class AppModule { }
Source: stackoverflow.com
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