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Install a new Ruby with rbenv on Mac OS (and make yourself a superhero)

If you're doing stuff with Ruby on a Mac, e.g. installling Jekyll or something, by default you'll end up having to use the sudo command to do stuff, since the permission to modify the default config is not available to your user account.

This sucks and should be avoided. Here's how to fix that.

Installing a new Ruby

To make this better, we are going install a new, custom Ruby. This used to be a big, scary thing, but thanks to the awesome tools Homebrew and rbenv, it's a snap.*

A word of warning: you will have to use Terminal to install this stuff. If you are uncomfortable with text, words, and doing stuff with your computer beyond pointing and hoping, this may not work well for you. But if that's the case, I'm not sure why you were trying to use Ruby in the first place.

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//
//  CoreDataController.swift
//
//  Created by Keith Harrison http://useyourloaf.com
//  Copyright (c) 2017 Keith Harrison. All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright

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######################
# Options
######################

REVEAL_ARCHIVE_IN_FINDER=false

FRAMEWORK_NAME="${PROJECT_NAME}"

SIMULATOR_LIBRARY_PATH="${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${FRAMEWORK_NAME}.framework"

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<?xml version="1.0" encoding="UTF-8"?>
<Bucket
   type = "2"
   version = "2.0">
   <Breakpoints>

      <!-- All Exceptions -->
      <BreakpointProxy
         BreakpointExtensionID = "Xcode.Breakpoint.ExceptionBreakpoint">
         <BreakpointContent

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expr -- (void)printf("[%s, %s]\n",(char *) object_getClassName(*(long*)($esp+4)), (char *) *(long *)($esp+8) )

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//
//  JAZMusician.h
//  JazzyApp
//

#import <Foundation/Foundation.h>

/**
 JAZMusician models, you guessed it... Jazz Musicians!
 From Ellington to Marsalis, this class has you covered.

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COMPACT WIDTH (stacked view)

- 320 x 480 pt
	-> iPhone 4s
- 320 x 568 pt
	-> iPhone 5, 5s
- 320 x 768 pt
	-> iPad Slideover Landscape
	-> iPad Split Landscape 2/3 right
- 320 x 1024 pt

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OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

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static Boolean PSPDFCaseInsensitiveEqualCallback(const void *a, const void *b) {
    id objA = (__bridge id)a, objB = (__bridge id)b;
    Boolean ret = FALSE;
    if ([objA isKindOfClass:NSString.class] && [objB isKindOfClass:NSString.class]) {
        ret = ([objA compare:objB options:NSCaseInsensitiveSearch|NSLiteralSearch] == NSOrderedSame);
    }else {
        ret = [objA isEqual:objB];
    }
    return ret;
}

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#import <UIKit/UIKit.h>

@interface UIView (TLLayout)

@property (nonatomic, strong) NSArray *hiddenConstraints;

// set hidden and remove any constraints involving this view from its superview
- (void)hideAndRemoveConstraints;
- (void)showAndRestoreConstraints;