//
//  NSDictionary+Extension.m
//  APEX CRM
//
//  Created by Ray on 2018/11/29.
//  Copyright © 2018 USAI. All rights reserved.
//

#import "NSDictionary+Extension.h"

@implementation NSDictionary (Extension)
-(BOOL) isNull:(NSString*)key
{
    return ([self objectForKey:key]==nil || (NSNull*)[self objectForKey:key]==[NSNull null]);
}
@end