Very new to Angular, and just trying to get a feel for it. I have an input component:

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

@Component({
  selector: 'app-input',
  templateUrl: './input.component.html',
})
export class InputComponent {
  q = '';

  queryChange(value: string) {
    this.q = value;
  }
}

It's html:

<div>
  <input #query type="text" (change)="queryChange(query.value)" />
  <button>Search</button>
  <div>{{ q }}</div>
</div>

When I type into the input, the {{ q }} doesn't update until I click anywhere on the screen, or hit enter. Almost like refocusing. Coming from React I'm confused as to why this happens with the Angular's (change) rather than updating as I type.

My first thought was that maybe because I'm passing the value of the input to queryChange(query.value) instead of passing the event value like I would usually do in React.

CodePudding user response：

I think the problem is about the DOM and not Angular. You should use (input) instead of (change) if you want the event to trigger every time you type.

<input #query type="text" (input)="queryChange(query.value)" />

See this StackBlitz, as well as change and input MDN references. Specifically, MDN says about change:

Unlike the input event, the change event is not necessarily fired for each alteration to an element's value.