Is there a way to set the initial value of an input's ngmodel variable using only HTML?

Is there a way to assign an initial value of "1" to the variable named "some" using ngModel during initialization? *Update: I am specifically interested in how to achieve this using HTML only

component.html :

<input type="text" value="1" name="some" [(ngModel)]="some"/>
<p>{{some}}</p>

Answer №1

When it comes to assigning values in your Angular class, there are a few different approaches you can take depending on how you have set up your component.

If your class implements OnInit, it is recommended to do the assignment in the ngOnInit() method like this:

export class SampleComponent implements OnInit{
  data: any;
  
  ngOnInit(){
    this.data = 'example';
  }
}

Alternatively, if you are not using OnInit, you can directly assign the value in the constructor as suggested by others:

export class SampleComponent{
  data: any;
  
  constructor(){
    this.data = 'example';
  }
}

Lastly, you can also assign a value at the time of variable declaration like this:

export class SampleComponent implements OnInit{
  data: any = 'example';
  
  ngOnInit(){
    
  }
}

Answer №2

To achieve this functionality, you can implement it within the constructor section of your Component file (.component.ts):

export class MyComponent {
   data: string;
   constructor () {
     this.data = "1";
   }
}

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