genemyers

const object = { "🔑key🔑": "💸value💸" }
console.log(typeof object) // "object"
console.log(object !== null) // true
console.log(object != null) // true

console.log(typeof null) // "object"
console.log(null !== null) // false
console.log(null != null) // false

console.log(typeof undefined) // "undefined"

genemyers

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

genemyers

1. list all remote tags
git ls-remote --tags

2. delete local tag
git tag -d V_1_0_1

3. push tag deletion to remote
git push origin :refs/tags/V_1_0_1

4. tag local branch again

genemyers

# EDITOR=nano sudo visudo
# Change the following line: (:i to insert + esc to go back + :w to save + :q to quit)
# Defaults     env_reset
# to:
# Defaults     env_reset,timestamp_timeout=960 # in minutes


export PATH=$PATH:.
# export PATH=$PATH:/usr/bin

genemyers

// Get the URL for the document directory
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSURL *documentDirectoryURL = [[fileManager URLsForDocumentDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] objectAtIndex:0];

// Turn the filename into a string safe for use in a URL
NSString *safeString = [@"scores.plist" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

// Create an array for the score
NSMutableArray *array = [[NSMutableArray alloc] init];      
[array addObject:[NSNumber numberWithInt:score]];

genemyers

// Reference: http://www.blackdogfoundry.com/blog/moving-repository-from-bitbucket-to-github/
// See also: http://www.paulund.co.uk/change-url-of-git-repository

$ cd $HOME/Code/repo-directory
$ git remote rename origin bitbucket
$ git remote add origin https://github.com/mandiwise/awesome-new-repo.git
$ git push origin master

$ git remote rm bitbucket

genemyers

// http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java

- (NSData *)AES256EncryptWithKey:(NSString *)key {
    // 'key' should be 32 bytes for AES256, will be null-padded otherwise
    char keyPtr[kCCKeySizeAES256+1]; // room for terminator (unused)
    bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)
    
    // fetch key data
    [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
    

genemyers

// node.js 0.5 Diffie-Hellman example                                           
var assert = require("assert");
var crypto = require("crypto");

// the prime is shared by everyone                                              
var server = crypto.createDiffieHellman(512);
var prime = server.getPrime();


// sharing secret key on a pair                                                 

genemyers

How to connect an iOS device to your computer via a SOCKS proxy

Say you're running a virtual machine on your work computer. Say this machine, for whatever reason, can only connect to the internet over NAT - as in, it does not get it's own IP address. Say this VM is running a webserver, and you need a device outside of your computer to connect to it.

If only there was a way to get your work computer to 'share' it's network, so that you could get at that VM… Here's how you do it!

For all instructions, I assume your work computer is a mac

1. Get your computer's IP address:

genemyers

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :