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1. Open Terminal
2. cd to your Xcode project
3. Execute the following when inside your target project:

find . -name "*.[hm]" -print0 | xargs -0 wc -l

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dispatch_group_t group = dispatch_group_create();
    dispatch_group_enter(group);
    [context performBlock:^{
       
        //block operations
        dispatch_group_leave(group);
    }];
    
    dispatch_group_wait(group, DISPATCH_TIME_FOREVER);

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- (void)solution{
    
    NSArray *list = @[@"end", @"back", @"and", @"the", @"po", @"pu", @"lar", @"face"];  //populate with any list of strings here
    
    NSString *inputStr = @"facebackandthethethefacebackpopularlarpopu"; //or input any string here
    
    BOOL canBeFormed = [self checkForString:inputStr.mutableCopy inList:list];
    
    if (canBeFormed) {
        NSLog(@"YES! %@ can be formed from the list.", inputStr);

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NSString *fileURL = @"https://s3-ap-southeast-1.amazonaws.com/haptikdev/test/Conversation.txt";
    
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]
                                                          delegate:self
                                                     delegateQueue:nil];
    
    NSURLSessionDownloadTask *getFile = [session downloadTaskWithURL:[NSURL URLWithString:fileURL]
                                                   completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
                                                       
                                                       NSError *extractErr = nil;

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defaults write com.apple.dt.Xcode ShowBuildOperationDuration YES

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Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

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git branch -r | awk -F/ '/\/PREFIX/{print $2}'
git branch -r | awk -F/ '/\/PREFIX/{print $2}' | xargs -I {} git push origin :{}

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// for custom overwrites within an entity like changing an attribute from Boolean to NSNumber, etc
- (BOOL)createDestinationInstancesForSourceInstance:(NSManagedObject *)sInstance 
                                      entityMapping:(NSEntityMapping *)mapping 
                                            manager:(NSMigrationManager *)manager 
                                              error:(NSError **)error {
    NSManagedObject *newObject = 
        [NSEntityDescription insertNewObjectForEntityForName:[mapping destinationEntityName] 
                                      inManagedObjectContext:[manager destinationContext]];

    // do transfer of nsdate to nsstring non-lightweight operations here

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######################
# Options
######################

set -x
set -e

REVEAL_ARCHIVE_IN_FINDER=false

FRAMEWORK_NAME="${PROJECT_NAME}"

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extension Int {
  var arc4random: Int {
    if self > 0 {
      return Int(arc4random_uniform(UInt32(self)))
    } else if self < 0 {
      return -Int(arc4random_uniform(UInt32(abs(self))))
    } else {
      return 0
    }
  }