How to use the @fundamental-ngx/core.FdDate function in @fundamental-ngx/core

public parse(value: string): FdDate {
        const values: number[] = value.split('-').map(Number);

        // If date is 0, set the date to invalid by setting month to 14
        if (values[2] === 0) {
            values[1] = 14;
        }
        return new FdDate(values[2], values[1], values[0]);
    }

import { Component } from '@angular/core';
import { FdDate } from '@fundamental-ngx/core';
import { FormControl, FormGroup } from '@angular/forms';

@Component({
    selector: 'fd-calendar-form-example',
    templateUrl: 'calendar-form-example.component.html',
    styleUrls: ['calendar-form-example.component.scss']
})
export class CalendarFormExamplesComponent {
    customForm = new FormGroup({
        date: new FormControl(FdDate.getToday()),
        dateRange: new FormControl({
            value: {
                start: new FdDate(2019, 10, 11),
                end: new FdDate(2019, 10, 19)
            }, disabled: false
        })
    });

    setInvalid() {
        this.customForm.controls['date'].setValue(new FdDate(null, null, null));
    }

    setInvalidRange() {
        this.customForm.controls['dateRange'].setValue(new FdDate(null, null, null));
    }

}

myDisableStartFunction = function(d: FdDate): boolean {
        const time = d.getTimeStamp();
        const currentTime = new FdDate(2019, 10, 10).getTimeStamp();
        return time > currentTime;
    };

myBlockFunction = function (d: FdDate): boolean {
        const firstDay = FdDate.getToday();
        const lastDay = new FdDate(firstDay.year, firstDay.month, firstDay.day + 7);
        return d.getTimeStamp() > firstDay.getTimeStamp() && d.getTimeStamp() < lastDay.getTimeStamp();
    };

setInvalid() {
        this.customForm.controls['date'].setValue(new FdDate(null, null, null));
    }

import { Component } from '@angular/core';
import { FdDate } from '@fundamental-ngx/core';
import { FormControl, FormGroup } from '@angular/forms';

@Component({
    selector: 'fd-calendar-form-example',
    templateUrl: 'calendar-form-example.component.html',
    styleUrls: ['calendar-form-example.component.scss']
})
export class CalendarFormExamplesComponent {
    customForm = new FormGroup({
        date: new FormControl(FdDate.getToday()),
        dateRange: new FormControl({
            value: {
                start: new FdDate(2019, 10, 11),
                end: new FdDate(2019, 10, 19)
            }, disabled: false
        })
    });

    setInvalid() {
        this.customForm.controls['date'].setValue(new FdDate(null, null, null));
    }

    setInvalidRange() {
        this.customForm.controls['dateRange'].setValue(new FdDate(null, null, null));
    }

}

setInvalidRange() {
        this.customForm.controls['dateRange'].setValue(new FdDate(null, null, null));
    }

myDisableEndFunction = function(d: FdDate): boolean {
        const time = d.getTimeStamp();
        const currentTime = new FdDate(2019, 10, 20).getTimeStamp();
        return time < currentTime;
    };
}