import { Component, ViewChild } from '@angular/core'; import { jqxComplexInputComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxcomplexinput'; @Component({ selector: 'app-root', templateUrl: './app.component.html' }) export class AppComponent { @ViewChild('myComplexInput') myComplexInput: jqxComplexInputComponent; getRealPart(): void { let realPart = this.myComplexInput.getReal(); alert(`Real part is ${realPart}`); } getImaginarypart(): void { let imaginaryPart = this.myComplexInput.getImaginary(); alert(`Imaginary part is ${imaginaryPart}`); } }