Dual Axis Currency Labels 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;
  public chartOptions: Partial<ChartOptions> = {
          series: [
            {
              name: 'Booked',
              type: 'column',
              data: [51020, 13850, 11630, 23820, 59530],
            },
            {
              name: 'Invoiced',
              type: 'line',
              data: [51020, 13850, 11630, 23820, 59530],
            },
          ],
          chart: {
            type: 'line',
            height: 420,
          },
          title: {
            text: 'Booked vs invoiced',
            align: 'left',
          },
          subtitle: {
            text: 'Two independently scaled axes can land both labels on the same row; dataLabels.avoidOverlap keeps them legible',
            align: 'left',
          },
          colors: ['#8bc34a', '#ef5350'],
          stroke: {
            width: [0, 2],
          },
          fill: {
            opacity: [0.35, 1],
          },
          markers: {
            size: [0, 4],
          },
          dataLabels: {
            enabled: true,
            background: {
              enabled: true,
              borderWidth: 0,
            },
            formatter: (val) => {
              return (
                '$' +
                (val / 1000).toLocaleString('en-US', {
                  minimumFractionDigits: 2,
                  maximumFractionDigits: 2,
                }) +
                'K'
              )
            },
          },
          xaxis: {
            categories: ['May 2026', 'Jun 2026', 'Jul 2026', 'Aug 2026', 'Sep 2026'],
          },
          yaxis: [
            {
              seriesName: 'Booked',
              title: {
                text: 'Booked',
              },
              labels: {
                formatter: (val) => {
                  return '$' + (val / 1000).toFixed(0) + 'K'
                },
              },
            },
            {
              seriesName: 'Invoiced',
              opposite: true,
              title: {
                text: 'Invoiced',
              },
              labels: {
                formatter: (val) => {
                  return '$' + (val / 1000).toFixed(0) + 'K'
                },
              },
            },
          ],
        };
  ngAfterViewInit() {
    (window as any).ApexCharts.setLicense('APEX-eyJleHBpcnlEYXRlIjoiMjEyNi0wNy0wNCIsImlzc3VlRGF0ZSI6IjIwMjYtMDctMjgiLCJwbGFuIjoicHJlbWl1bSIsImRvbWFpbnMiOlsiYXBleGNoYXJ0cy5jb20iLCIxMjcuMC4wLjEiLCJsb2NhbGhvc3QiXSwic2lnIjoieVBmb1VCc0Z3TU9ZdUEyaEZkR0I2Y1FtZ0JITUtXcVdJSjB2NVRESXRZbFR3eDJMUmh6R2x0RUc3VXJ4X0s3b25ZMWRZb2Z2VGItN01ydFYyNDVyOWcifQ==');
  }

  ngOnDestroy() {
    // no cleanup needed
  }
}