goldfish0506

函数式编程

wikipedia 定义：

Functional Programming is a programming paradigm

• treats computation as the evaluation of mathematical functions.
• avoids changing-state and mutable data

函数式编程是一种编程范式，它将计算机运算视为数学上的函数计算，并且避免使用程序状态以及易变对象

goldfish0506

void DumpObjcMethods(Class clz) {
    
    unsigned int methodCount = 0;
    unsigned int propertyCount = 0;
    Method *methods = class_copyMethodList(clz, &methodCount);
    objc_property_t *properties = class_copyPropertyList(clz, &propertyCount);

    
    printf("Found %d methods on '%s'\n", methodCount, class_getName(clz));
    

goldfish0506

+ (BOOL)isFund:(NSString *)symbol
{
    for (NSString *fundSymbol in [self funds]) {
        if ([symbol hasPrefix:fundSymbol]) {
            return YES;
        }
    }
    return NO;
}

goldfish0506

NSString *path = [[NSBundle mainBundle] pathForResource:@"ad" ofType:@"json"];
NSData *jsonData = [NSData dataWithContentsOfFile:path];
jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:nil];

goldfish0506

---
Language:        Cpp
# BasedOnStyle:  LLVM
AccessModifierOffset: 0
AlignAfterOpenBracket: true
AlignEscapedNewlinesLeft: false
AlignOperands:   true
AlignTrailingComments: true
AllowAllParametersOfDeclarationOnNextLine: true
AllowShortBlocksOnASingleLine: false

goldfish0506

#import "RoundImageView.h"

@implementation RoundImageView

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.clipsToBounds = YES;
        self.contentMode = UIViewContentModeScaleAspectFill;

goldfish0506

- (NSArray *)constrainSubview:(UIView *)subview toMatchWithSuperview:(UIView *)superview
{
    subview.translatesAutoresizingMaskIntoConstraints = NO;
    NSDictionary *viewsDictionary = NSDictionaryOfVariableBindings(subview);
    
    NSArray *constraints = [NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:|[subview]|"
                            options:0
                            metrics:nil
                            views:viewsDictionary];

goldfish0506

#import "UIImageView+Util.h"

@implementation UIImageView (Util)

- (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder animation:(BOOL)animation
{
  __weak typeof (self) weakSelf = self;
  [self setImageWithURL:url
       placeholderImage:placeholder
              completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {

goldfish0506

typedef NS_ENUM(NSInteger, JYImageType) {
  JYImageTypeJPEG,
  JYImageTypePNG,
  JYImageTypeUnknown,
};

static inline JYImageType JYImageTypeFromData(NSData *imageData) {
  if (imageData.length > 4) {
    const unsigned char * bytes = [imageData bytes];
    

goldfish0506

NSString * JYKeyPathForSelectors(SEL selector, ...);

inline NSString * JYKeyPathForSelectors(SEL selector, ...) {
  if (!selector) {
    return nil;
  }
  
  NSMutableArray *selectors = [NSMutableArray array];
  va_list args;
  va_start(args, selector);