Having trouble linking the date object with the default value of the date input field

Exploring how to set the default value of a date type input using property binding.

Initially, I attempted to create a new date object in app.component.ts and then bind the [value] attribute of the date input to the currentDate property within app.component.ts. However, this approach did not yield the desired result.

// Form Template

<section class="container">
  <div class="panel panel-default>
    <div class="panel-heading">Add a Task</div<
    <div class="panel-body>>
      <form class="form-horizontal" [formGroup]="taskForm" (ngSubmit)="onSubmit()">
        <div class="form-group>
          <label for="title" class="col-sm-2 control-label">Title *</label>
          <div class="col-sm-10">
            <input type="text" class="form-control" id="taskTitle" placeholder="Title of Task" formControlName="taskTitle">
          </div>
        </div>
        <div class="form-group>
          <label for="description" class="col-sm-2 control-label">Description *</label>
          <div class="col-sm-10">
            <input type="text" class="form-control" id="description" placeholder="Enter Your Description" formControlName="description">
          </div>
        </div>
        <div class="form-group>
          <label for="date" class="col-sm-2 control-label">Date of Completion *</label>
          <div class="col-sm-10">
            <input type="date" class="form-control" id="date" formControlName="date" [value]="currentDate">
          </div>
        </div>
        <div class="form-group>
          <div class="col-md-offset-6">
            <button type="submit" class="btn btn-default">Submit your data</button>
          </div>
        </div>
      </form>
    </div>
  </div>
</section>
<section class="container">
  <app-task-list></app-task-list>
</section>

// App component

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormControl } from '@angular/forms';
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
  currentDate: {};
  taskForm: FormGroup;

  ngOnInit() {
    this.taskForm = new FormGroup({
      'taskTitle': new FormControl(''),
      'description': new FormControl(''),
      'date': new FormControl(null)
    });
    this.currentDate = new Date();
    console.log(this.currentDate);
  }

  onSubmit() {

  }
}

Answer №1

If the specified date format does not match what the form/input is expecting, the date will not be displayed. One option is to convert the date within your component or utilize a pipe.

Using a pipe:

<form>
  <input 
      type="date" class="form-control" 
      name="currentDate" [ngModel]="currentDate | date:'yyyy-MM-dd'">
</form>

Without using a pipe:

Component:

currentStringDate;
constructor() {
    this.currentStringDate = new Date().toISOString().substring(0, 10);
}

HTML:

<input type="date" class="form-control" name="currentStringDate" [ngModel]="currentStringDate">

edit: Remember to include the name attribute in your HTML and ensure that it matches the ngModel variable name.

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