text: //
  // Created by kazuma.ukyo on 3/29/13.
  //
  // To change the template use AppCode | Preferences | File Templates.
  //
  
  
  #import <Foundation/Foundation.h>
  
  @interface NSArray (OVCore)
  - (void)each:(void (^)(id obj, NSUInteger idx))block;
  - (NSArray *)map:(id (^)(id obj, NSUInteger idx))block;
  - (id)reduce:(id (^)(id memo, id obj))block memo:(id)memo;
  - (NSArray *)filter:(BOOL (^)(id obj, NSUInteger idx))block;
  - (NSArray *)reject:(BOOL (^)(id obj, NSUInteger idx))block;
  @end