/Javascript/AngularJS/Angular filter ngfor

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

Similar codes

0 vote257 views2 answers
This version of CLI is only compatible with Angular versions 0.0.0 || ^9.0.0-beta || >=9.0.0 <10.0.0, but Angular version 10.0.14 was found instead.
Javascript AngularJS
0 vote306 views1 answer
How to make color squares in angular
Javascript AngularJS
2 votes301 views2 answers
If 'router-outlet' is an Angular component, then verify that it is part of this module.
Javascript AngularJS
0 vote333 views1 answer
Angular format phone number while typing
Javascript AngularJS
0 vote306 views1 answer
How to avoid inheritance in angular
Javascript AngularJS
0 vote299 views2 answers
Scroll down angular with animation
Javascript AngularJS
-1 vote319 views2 answers
How to set form control value in angular
Javascript AngularJS
12 votes277 views5 answers
Angular font awesome
Javascript AngularJS
0 vote292 views1 answer
Open bytes in new tab angular
Javascript AngularJS
9 votes240 views1 answer
Angular settimeout
Javascript AngularJS