jerry-sl

#import <UIKit/UIKit.h>

@interface DateFlowLayout : UICollectionViewFlowLayout

@end

jerry-sl

typedef enum {
    AGCommandPriorityLow = -10,
    AGCommandPriorityDefault = 0,
    AGCommandPriorityHigh = 10
} AGCommandPriority;

@interface AGCommand : NSObject

@property(nonatomic, weak) NSObject *firingObject;
@property(nonatomic, readonly) SEL action;

jerry-sl

typedef enum {
    AGCommandPriorityLow = -10,
    AGCommandPriorityDefault = 0,
    AGCommandPriorityHigh = 10
} AGCommandPriority;

@interface AGCommand : NSObject

@property(nonatomic, weak) NSObject *firingObject;
@property(nonatomic, readonly) SEL action;

jerry-sl

@interface ApplicationDelegate<UIApplicationDelegate>
@end

@implementation ApplicationDelegate
- (RACSignal *)rac_registeredForRemoteNotifications {
    RACSignal *signal = objc_getAssociatedObject(self, _cmd);
    if (signal != nil) return signal;
    
    RACSignal *didRegisterForRemoteNotification = [[self rac_signalForSelector: @selector(application:didRegisterForRemoteNotificationsWithDeviceToken:) fromProtocol: @protocol(UIApplicationDelegate)] map: ^(RACTuple *tuple) {
        return tuple.second;

jerry-sl

<h1>Ruls</h1>
• The ? matches zero or one of the preceding group.
• The * matches zero or more of the preceding group.
• The + matches one or more of the preceding group.
• The {n} matches exactly n of the preceding group.
• The {n,} matches n or more of the preceding group.
• The {,m} matches 0 to m of the preceding group.
• The {n,m} matches at least n and at most m of the preceding group.
• {n,m}? or *? or +? performs a nongreedy match of the preceding group.
• ^spam means the string must begin with spam.

jerry-sl

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

• Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
• Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
• If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
• If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

jerry-sl

var fs = require('fs');
var parse = require('csv-parse');
var Web3 = require('web3');
var abi = require('./abi.json');
var _ = require('lodash');
const Tx = require('ethereumjs-tx');


var web3 = new Web3(new Web3.providers.HttpProvider("https://ropsten.infura.io/scure_key"));
//var inputFile = 'data.csv';

jerry-sl

go get -u golang.org/x/crypto/bcrypt
go get -u golang.org/x/crypto/blowfish
go get -u golang.org/x/crypto/bn256
go get -u golang.org/x/crypto/cast5
go get -u golang.org/x/crypto/curve25519
go get -u golang.org/x/crypto/hkdf
go get -u golang.org/x/crypto/md4
go get -u golang.org/x/crypto/nacl/box
go get -u golang.org/x/crypto/nacl/secretbox
go get -u golang.org/x/crypto/ocsp

jerry-sl

# Set variables in .bashrc file

# don't forget to change your path correctly!

export GOPATH=$HOME/golang
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin

jerry-sl

// 删除所有已经停止的container
docker rm -v $(docker ps -aq -f status=exited)
// 从dockerhub下拉镜像
docker pull redis
// 后台启动容器
docker run --name myredis -d redis
// 启动另外一个容器并链接到myredis:redis容器
docker run --rm -it --link myredis:redis redis /bin/bash