Pass parameter to Angular 4 directive on input

Question

I have an input text field like this

and my dire

Answer 1

Try like this in directive :

import {Directive, Input, ElementRef} from 'angular2/core';
@Directive({
    selector: '[inputTextFilter]'
})
class FocusDirective {
    @Input() inputTextFilter: any;
    protected ngOnChanges() {
         console.log('inputTextFilter', this.inputTextFilter);
    }
}