export class NumberAnalyzer {
    public isNumber(num: any) : boolean {
        return isNaN(num);
    }
    public isOdd(num: number) : boolean {
        return num % 2 === 1;
    }

    public isEven(num: number) : boolean {
        return num % 2 === 0;
    }

    public isNegative(num: number) : boolean {
        return num < 0;
    }

    public isPositive(num: number) : boolean {
        return num > 0;
    }
}