using System.Collections;
using System.Collections.Generic;

namespace AnP.Utils{
    public class Check{
        
        public static bool is_string(object? item){
            return item is string;
        }

        
        public static bool is_key(object? item){
            return item is string && RE.KEY.IsMatch((string)item);
        }

        public static bool is_dictionary<T>(object? item){
            return item is IDictionary<string, T>;
        }

        public static bool is_dictionary(object? item){
            return item is IDictionary;
        }

        public static bool is_array<T>(object? item){
            return item is IEnumerable<T>;
        }

        public static bool is_array(object? item){
            return item is IEnumerable;
        }

        public static bool is_integer(object? item){
            return item is int;
        }

        public static bool is_float(object? item){
            return item is float || item is double || item is decimal;
        }

    }
}