yannxou

rm Pods/Manifest.lock && rm Podfile.lock && pod install

yannxou

// This is a shortcut for user.friends != nil ? user.friends.count : 0
let count = user.friends?.count ?? 0

yannxou

Add the following line at the 'Arguments Passed On Launch' in your run scheme.

-com.apple.CoreData.SQLDebug 1

yannxou

// Var only setteable from private access level but with internal access (default) on its getter
private(set) var info = ""

// Var only setteable from private access level but with public access on its getter
public private(set) var info = ""

yannxou

/**
 Deletes all the existing files and subdirectories in the NSTemporaryDirectory
 */
+ (void)cleanTemporaryDirectory {
    NSString *tmpDirectory = NSTemporaryDirectory();
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSError *error;
    NSArray *cacheFiles = [fileManager contentsOfDirectoryAtPath:tmpDirectory error:&error];
    for (NSString *file in cacheFiles) {
        error = nil;

yannxou

/**
 Downloads the file from the specified <code>url</code> into the given <code>targetPath</code>.
 */
+ (void)downloadFileFromUrl:(NSString *)url targetPath:(NSString *)path success:(void (^)(NSString *filePath))success failure:(void (^)(NSError *error))failure {
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    
    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSString *filename = [operation.response suggestedFilename];
        NSString *filePath = [path stringByAppendingPathComponent:filename];

yannxou

po [[[[UIApplication sharedApplication] keyWindow] rootViewController] _printHierarchy]

yannxou

#!/bin/bash

# customize with your own.
options=("AAA" "BBB" "CCC" "DDD")

menu() {
    clear
    echo "Avaliable options:"
    for i in ${!options[@]}; do 
        printf "%3d%s) %s\n" $((i+1)) "${choices[i]:- }" "${options[i]}"

yannxou

NSString * htmlString = @" <p><b>Hey</b> you. My <b>name </b> is <h1> Joe </h1></p> ";
NSAttributedString * attrStr = [[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
UILabel * myLabel = [UILabel alloc] init];
myLabel.attributedText = attrStr;