import { AfterViewInit, ElementRef, EventEmitter, QueryList } from '@angular/core';
export declare class CalcComponent implements AfterViewInit {
    static onCalc: EventEmitter<{}>;
    screen: string;
    private eraseAfterResult;
    results: any;
    resultsList: ElementRef;
    resultsListItem: QueryList<any>;
    modalVisible: boolean;
    ngAfterViewInit(): void;
    onKeyUp(ev: KeyboardEvent): void;
    printNumber(n: any): void;
    setScreen(v: any): void;
    printZero(): void;
    setOperation(op: any): void;
    setPercent(): void;
    printDot(): void;
    calc(): void;
    erase(): void;
    clearAll(): void;
    clearOperation(): void;
}