//
//  NSString+Customer.m
//  Unity-iPhone
//
//  Created by zhl on 2022/11/28.
//

#import "NSString+Customer.h"

@implementation NSString (Customer)
+ (BOOL)isStringEmpty:(NSString *)string {
  if (((NSNull *) string == [NSNull null]) || (string == nil) ) {
    return YES;
  }
  if (string == nil) {
    return YES;
  } else if ([string length] == 0) {
    return YES;
  }
  string = [string stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
  
  if ([string isEqualToString:@""]) {
    return YES;
  }
  return NO;
}
@end