Angular 2 - how to Prevent Change Detection

Question

i want to avoid change detection, i tried one method but i want to use outside of angular concept

plunkr sample *this link has my plunkr sample , i tried one method to avoid change detection which creating micro task *

onClick() {
    this.num++;
    
    this.cdRef.detach();
    this.ngZone.onMicrotaskEmpty.first().subscribe(() => {
      this.cdRef.reattach();
    });
  }

i refered this question but i could not find my sollution relative question

Answer 1

 onClick() {
    debugger
    this._ngZone.runOutsideAngular(() => {
      // this.num++
      setTimeout(()=>this.num = 5);    
      });
  }

i used this code instead of using microtask method, it works fine