Can't see values in console.log() in nativescript - nativescript

Question

I have an js file which includes an array! The js file is like this one
export const appointments = [
{
"taskID": 9018929,
"resource_ID": 1,
"title": "KNDL Thatcham",
"description": "<Non-Selected>\r\n10:00 - 18:00",
"startTime": "2018-12-28T00:00:00",
"endTime": "2018-12-28T23:59:00",
"statusColour": "#DFDFDF",
"clientColour": "#FFFDD7"
}]
I have imported this js files in service.ts. And this appointments.js does not show in the console.log.
import { Injectable } from '#angular/core';
import { appointments } from '../appointments';
import { Color } from "tns-core-modules/color";
// >> angular-calendar-require
import { CalendarEvent } from 'nativescript-ui-calendar';
#Injectable({
providedIn: 'root'
})
export class CalendarService {
constructor() {
//var a="test test etsdhsakdsakd dsddssdsd";
console.log(appointments);
}
This is the component where I am importing the service.ts
import { Component, OnInit } from '#angular/core';
import { CalendarService } from "./service/calendar.service";
import { RadCalendar, CalendarEvent, CalendarSelectionEventData } from "nativescript-ui-calendar";
#Component({
selector: 'ns-calendar',
templateUrl: './calendar.component.html',
styleUrls: ['./calendar.component.css'],
moduleId: module.id,
providers: [CalendarService]
})
export class CalendarComponent implements OnInit {
}

Answer 1

You need to add a private calendarService parameter of type CalendarService to the constructor.
When Angular creates a CalendarComponent , the Dependency Injection system sets the calendarService parameter to the singleton instance of CalendarService .
export class CalendarComponent implements OnInit {
constructor(calendarService : CalendarService ) {}
}