### File

`src/app/chooser/helix-list/helix-list.component.ts`

### Implements

`OnInit`

### Metadata

selector | `hi-helix-list`
styleUrls | `./helix-list.component.scss`
templateUrl | `./helix-list.component.html`

### Index

###### Properties
groups keys
###### Methods
ngOnInit

### Constructor

`constructor(service: ChooserService)`
Defined in src/app/chooser/helix-list/helix-list.component.ts:14
Parameters :
Name | Type | Optional
service | `ChooserService` | No

### Methods

ngOnInit
`ngOnInit()`
Defined in src/app/chooser/helix-list/helix-list.component.ts:18
Returns : `void`

### Properties

groups
Type : `any`
Defined in src/app/chooser/helix-list/helix-list.component.ts:13

keys
Default value : `_.keys`
Defined in src/app/chooser/helix-list/helix-list.component.ts:14

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

    import * as _ from 'lodash';

    import { ChooserService } from '../shared/chooser.service';

    @Component({
      selector: 'hi-helix-list',
      templateUrl: './helix-list.component.html',
      styleUrls: ['./helix-list.component.scss'],
    })
    export class HelixListComponent implements OnInit {
      groups: any;
      keys = _.keys;

      constructor(protected service: ChooserService) {}

      ngOnInit() {
        this.service.getAll().subscribe((data) => (this.groups = data));
      }
    }

    <!--
      ~ Licensed to the Apache Software Foundation (ASF) under one
      ~ or more contributor license agreements.  See the NOTICE file
      ~ distributed with this work for additional information
      ~ regarding copyright ownership.  The ASF licenses this file
      ~ to you under the Apache License, Version 2.0 (the
      ~ "License"); you may not use this file except in compliance
      ~ with the License.  You may obtain a copy of the License at
      ~
      ~     http://www.apache.org/licenses/LICENSE-2.0
      ~
      ~ Unless required by applicable law or agreed to in writing,
      ~ software distributed under the License is distributed on an
      ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
      ~ KIND, either express or implied.  See the License for the
      ~ specific language governing permissions and limitations
      ~ under the License.
      -->

    <mat-card *ngFor="let group of keys(groups)">
      <mat-card-header>
        <mat-card-title>{{ group | titlecase }}</mat-card-title>
      </mat-card-header>
      <mat-card-content>
        <section *ngFor="let section of groups[group]" class="section">
          <a
            *ngFor="let helix of keys(section)"
            mat-button
            [routerLink]="['/', group + '.' + helix]"
          >
            <mat-icon>group_work</mat-icon>
            {{ helix }}
          </a>
        </section>
      </mat-card-content>
    </mat-card>

`./helix-list.component.scss`

    .section {
      padding-bottom: 20px;

      .mat-button {
        width: 150px;
        text-align: left;
      }
    }

    .mat-card-title {
      font-size: 20px;
    }

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Component
Html element with directive

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