Pass parameter to Angular 4 directive on input

Question

I have an input text field like this

and my dire

Answer 1

Try this.

Update:

import {Directive, SimpleChanges} from '@angular/core';

@Directive({
  selector: '[inputTextFilter]'
})
export class MyDirective {
  @Input('inputTextFilter') params: string;
  constructor(){}
  ngOnInit(){
     console.log(this.params)
  }
}