Columns in Angular

import { Component, AfterViewInit, OnDestroy, ViewChild } from '@angular/core';
import {
  ChartComponent,
  ApexAxisChartSeries,
  ApexNonAxisChartSeries,
  ApexChart,
  ApexXAxis,
  ApexYAxis,
  ApexTitleSubtitle,
  ApexDataLabels,
  ApexStroke,
  ApexFill,
  ApexLegend,
  ApexTooltip,
  ApexMarkers,
  ApexPlotOptions,
  ApexResponsive,
  ApexGrid,
  ApexAnnotations,
  ApexStates,
  ApexTheme,
  NgApexchartsModule,
} from 'ng-apexcharts';

export type ChartOptions = {
  series?: ApexAxisChartSeries | ApexNonAxisChartSeries;
  chart?: ApexChart;
  xaxis?: ApexXAxis;
  yaxis?: ApexYAxis | ApexYAxis[];
  title?: ApexTitleSubtitle;
  subtitle?: ApexTitleSubtitle;
  dataLabels?: ApexDataLabels;
  stroke?: ApexStroke;
  fill?: ApexFill;
  legend?: ApexLegend;
  tooltip?: ApexTooltip;
  markers?: ApexMarkers;
  plotOptions?: ApexPlotOptions;
  responsive?: ApexResponsive[];
  grid?: ApexGrid;
  annotations?: ApexAnnotations;
  states?: ApexStates;
  theme?: ApexTheme;
  colors?: string[];
  labels?: any;
};

@Component({
  selector: 'app-chart',
  standalone: true,
  imports: [NgApexchartsModule],
  templateUrl: './chart.component.html',
})
export class AppChart implements AfterViewInit, OnDestroy {
  @ViewChild('chart') chart!: ChartComponent;
  private YEARS: any = ['2015', '2016', '2017', '2018', '2019', '2020', '2021', '2022'];

  private REGIONS: any = ['Americas', 'Europe', 'Asia Pacific'];

  private UNITS: any = [
        [34, 43, 66, 69, 58, 40, 78, 80],
        [21, 26, 29, 32, 47, 46, 50, 96],
        [19, 24, 28, 26, 38, 31, 52, 38],
      ];

  private CHANNELS: any = {
        online: [
          [26, 29, 50, 48, 37, 26, 55, 40],
          [14, 17, 21, 20, 23, 34, 38, 70],
          [12, 18, 22, 20, 26, 21, 38, 19],
        ],
        store: [
          [8, 14, 16, 21, 21, 14, 23, 40],
          [7, 9, 8, 12, 24, 12, 12, 26],
          [7, 6, 6, 6, 12, 10, 14, 19],
        ],
      };

  private seriesFor = (channel: any): any => {
        return this.REGIONS.map(function (name, i) {
          var s = { name: name, data: this.UNITS[i] }
          if (channel) s.highlightData = this.CHANNELS[channel][i]
          return s
        })
      };

  private pickChannel = (chart: any, channel: any): any => {
        document.querySelectorAll('[data-channel]').forEach(function (b) {
          b.classList.toggle('active', b.getAttribute('data-channel') === channel)
        })
        return chart.updateSeries(this.seriesFor(channel))
      };

  private wireChannels = (chart: any): any => {
        document.querySelectorAll('[data-channel]').forEach(function (b) {
          b.addEventListener('click', function () {
            this.pickChannel(chart, b.getAttribute('data-channel'))
          })
        })
      };

  public chartOptions: Partial<ChartOptions> = {
          series: this.seriesFor('online'),
          chart: {
            id: 'units',
            type: 'bar',
            height: 380,
            toolbar: { show: false },
          },
          colors: ['#16a34a', '#f59e0b', '#2563eb'],
          plotOptions: {
            bar: { columnWidth: '78%' },
          },
          dataLabels: { enabled: false },
          stroke: { show: true, width: 1, colors: ['transparent'] },
          xaxis: { categories: this.YEARS },
          yaxis: { title: { text: 'Units (thousands)' } },
          highlightFilter: { fadeOpacity: 0.2 },
          legend: { position: 'bottom' },
          tooltip: { shared: true, intersect: false },
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJleHBpcnlEYXRlIjoiMjEyNi0wNy0wNCIsImlzc3VlRGF0ZSI6IjIwMjYtMDctMjgiLCJwbGFuIjoicHJlbWl1bSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiLCJsb2NhbGhvc3QiXSwic2lnIjoieVBmb1VCc0Z3TU9ZdUEyaEZkR0I2Y1FtZ0JITUtXcVdJSjB2NVRESXRZbFR3eDJMUmh6R2x0RUc3VXJ4X0s3b25ZMWRZb2Z2VGItN01ydFYyNDVyOWcifQ==');
    this.wireChannels(this.chart)

    function pickChannel(chart, channel) {
          document.querySelectorAll('[data-channel]').forEach(function (b) {
            b.classList.toggle('active', b.getAttribute('data-channel') === channel)
          })
          return this.chart.updateSeries(this.seriesFor(channel))
        }
    function wireChannels(chart) {
          document.querySelectorAll('[data-channel]').forEach(function (b) {
            b.addEventListener('click', () => {
              this.pickChannel(chart, b.getAttribute('data-channel'))
            })
          })
        }
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}