lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

jdriscoll

//
//  XMLObjectMapper.h
//  Copyright (c) 2014 Justin Driscoll All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

jacobsalmela

#!/bin/bash
# https://github.com/jacobsalmela

# Enables outbound SSH in single-user mode on OS X
# Save this file as /var/root/.profile and boot into single-user mode

# Last tested on 10.9.2

#----------VARIABLES---------
# Manually set ethernet device ID

m1entus

// 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];
    

bmatcuk

How to Symbolize OSX Crash Logs

Unfortunately, xcode does not yet have support for importing OSX crash logs and symbolizing them. Therefore, you must use the command line and a little bit of manual work.

1. Find your dSYM file.
   1. Assuming you are using xcode's archive functionality, open the Organizer window from the Window menu.
   2. Click the Archives tab.
   3. Right click on the appropriate build and select Show in Finder.
   4. When Finder opens, right click on the selected archive and select Show Package Contents.
   5. Navigate to the dSYM directory and copy the appropriate dSYM file to a temporary directory.
2. Then navigate to Products, then Applications, and copy the app file to the same temporary directory.

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

nicklockwood

Suppose we want to add support for a new iOS 8 API in our framework that replaces an older iOS 7 API. There are a few problems we might face:

1. The new API will crash if we call it on iOS 7
2. The new API won't compile if we build it using the iOS 7 SDK
3. The old API will raise a deprecation warning if built with a deployment target of iOS 8 and up

These three problems require three different technical solutions:

1. We can avoid calling the new API on an old OS version by using runtime detection (e.g. respondsToSelector:)
2. We can avoid compiling new APIs on old SDKs using the __IPHONE_OS_VERSION_MAX_ALLOWED macro

LeCoupa

// XPath CheatSheet
// To test XPath in your Chrome Debugger: $x('/html/body')
// http://www.jittuu.com/2012/2/14/Testing-XPath-In-Chrome/


// 0. XPath Examples.
// More: http://xpath.alephzarro.com/content/cheatsheet.html


'//hr[@class="edge" and position()=1]'                // every first hr of 'edge' class

meoow

#!/bin/bash
 
# Baidu Yun Command Line Interface
 
# Depends: bash, curl, grep, awk, sed, od
# (They are basicly builtin tools of any *nix system.)
# Additionally, fastupload depends: head, wc, md5sum or md5, cksum
# (Which are also builtin tools)
 
#### Variables ####

felix-schwarz

#!/bin/bash

#
# SignAndPackageForMAS.sh v1.0.1
#
# Codesign an app bundle and build a signed package ready for submission to the
# Mac App Store
#
# Copyright (c) 2014 Felix Schwarz (@felix_schwarz), IOSPIRIT GmbH (@iospirit)
#