Ngfor ionic example

Ionic ngfor in component


I'm going crazy, i've created a new component and he's working fine. Now i would like to use this on two pages.

Then i've created a component module (/components/all-components.module.ts) like this :

import { NgModule } from '@angular/core';
import { TagsComponent } from './tags/tags.component';
import { IonicModule } from '@ionic/angular';


@NgModule({
  imports: [IonicModule],
  declarations: [
    TagsComponent
  ],
  exports: [
    TagsComponent
  ]
})

export class AllComponentsModule {}

I've added on app.module.ts the AllComponentsModule and on my 2 pages module i have added same.

Now, my component work fine when i'm displaying text or variable, my console.log return the data, but if i use *ngFor nothing appear.

Finally, here's my component

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

@Component({
  selector: 'app-tags',
  templateUrl: './tags.component.html',
  styleUrls: ['./tags.component.scss'],
})
export class TagsComponent implements OnInit {

  @Input() userTags: any;

  constructor() {
  }

  ngOnInit() {
      console.log(this.userTags);
  }
}

And the view:

<p>hi</p>
<div *ngFor="let tag of userTags">
  <p>{{tag?.name}}</p>
</div>

Ok i don't understand why but if i use a module to store all of components. On my all-components.module.ts i have to put the CommonModule to interpret *ngFor, *ngIf, etc.

With CommonModule import all working fine !

Here's the code updated:

import { NgModule } from '@angular/core';
import { TagsComponent } from './tags/tags.component';
import { CommonModule } from "@angular/common";

@NgModule({
  imports: [CommonModule],
  declarations: [
    TagsComponent
  ],
  exports: [
    TagsComponent
  ]
})

export class AllComponentsModule {}

Ngfor ionic example

<ion-select placeholder="Select" [(ngModel)]="selected">
    <ion-option *ngFor="let item of strings" [value]="item">{{item}}</ion-option>
</ion-select>`

Source: forum.ionicframework.com

Similar codes

0 vote174 views1 answer
Typescript date before
TypeScript
-1 vote172 views2 answers
What is a react hook
TypeScript
1 vote174 views1 answer
Typescript event keyCode
TypeScript
1 vote173 views1 answer
Div contenteditable maxlength reactjs
TypeScript
0 vote166 views1 answer
Typescript type function callback in interface
TypeScript
5 votes164 views1 answer
Vscode change comments color
TypeScript
0 vote170 views1 answer
Does key repeats in hashmap
TypeScript
0 vote185 views1 answer
Android get digits from string
TypeScript
0 vote172 views1 answer
Why can't define generic function in tsx file
TypeScript
0 vote165 views1 answer
Xargs / parallel
TypeScript