export class ArrayUtils {
    public static chooseRandom<T>(array: Array<T>):T {
        const index = Math.floor(Math.random() * array.length);
        return array[index];
    }

    public static arraysEqual<T>(a: Array<T>, b: Array<T>): boolean {
        if (a === b) return true;
        if (a == null || b == null) return false;
        if (a.length !== b.length) return false;

        for (let i = 0; i < a.length; ++i) {
            if (a[i] !== b[i]) return false;
        }
        return true;
    }
}