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#swagger ruby fix 
grep -rl "ActiveRecord::Migration$" db | xargs sed -i "" "s/ActiveRecord::Migration/ActiveRecord::Migration[5.1]/g"

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iOS Refs:

1. Unit Testing
   1. https://www.youtube.com/watch?v=VQscQ-glpwI
   2. https://www.youtube.com/watch?v=PQOLU1d6iIM&feature=youtu.be
2. Card Payments
   1. https://www.youtube.com/watch?v=4JFEuf2hkKQ
3. Separation App into several Dynamic Frameworks
4. https://www.youtube.com/watch?v=4KuHq4PT9Bo

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https://www.raizlabs.com/dev/2014/02/animating-items-in-a-uicollectionview/

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{"lastUpload":"2020-04-14T13:58:45.149Z","extensionVersion":"v3.4.3"}

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// Place your key bindings in this file to overwrite the defaults
[
    {
        "key": "cmd+t",
        "command": "openInTerminal.openIntegrated"
    },
    {
        "key": "shift+cmd+t",
        "command": "openInTerminal.openRootIntegrated"
    },

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public extension FloatingPoint {

    /// Re-maps a number from one range to another.
    ///
    /// - Parameters:
    ///   - source: The range to interpret the number as being a part of.
    ///   - destination: The range to map the number to.
    ///   - clamped: Whether the result should be clamped to the `to` range. Defaults to `false`.
    ///   - reversed: whether the output mapping should be revserd, such that
    ///               as the input increases, the output decreases. Defaults to `false`.

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#!/bin/bash

# bootstrap: brew install lame flac

for f in *.flac; do
    
    [[ "$f" != *.flac ]] && continue
    album="$(metaflac --show-tag=album "$f" | sed 's/[^=]*=//')"
    artist="$(metaflac --show-tag=artist "$f" | sed 's/[^=]*=//')"
    date="$(metaflac --show-tag=date "$f" | sed 's/[^=]*=//')"

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extension UIVisualEffectView {
    
    private var filterLayer: CALayer? {
        return layer.sublayers?.first
    }
    
    private var blurFilter: NSObject? {
        return filterLayer?
            .filters?.flatMap({ $0 as? NSObject })
            .first(where: { $0.value(forKey: "name") as? String == "gaussianBlur" })

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#to gen string files
find ./ -name "*.m" -exec echo {} \; -exec genstrings -a -o en.lproj {} \;

#proper macros 
NSLocalizedStringWithDefaultValue

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@interface Tools: NSObject

+ (UIColor *)colorWithHex:(NSUInteger)hex;

@end
  
@implementation Tools
  
+ (UIColor *)colorWithHex:(NSUInteger)hex