shanab

class Numeric
  @@currencies = { dollar: 7.15, euro: 9.26, yen: 0.068 }

  @@currencies.each do |currency, rate|
    define_method(currency) do
      self * rate
    end

    alias_method "#{currency}s".to_sym, currency
  end

shanab

class Numeric
  @@currencies = { dollar: 7.15, euro: 9.26, yen: 0.068 }

  def method_missing(method_id, *args, &block)
    singular_currency = method_id.to_s.gsub(/s$/, '').to_sym

    if @@currencies.has_key?(singular_currency)
      self * @@currencies[singular_currency]
    else
      super

shanab

Keybase proof

I hereby claim:

• I am shanab on github.
• I am shanab (https://keybase.io/shanab) on keybase.
• I have a public key whose fingerprint is 894C 5D05 AEB1 B536 DD93 E2BB F7C1 EF29 F486 EE28

To claim this, I am signing this object:

shanab

package cache

// call is an in-flight or completed Do call
type call struct {
	wg sync.WaitGroup

	// These fields are written once before the WaitGroup is done
	// and are only read after the WaitGroup is done.
	val interface{}
	err error

shanab

func permutations(a []int) [][]int {
	var results [][]int
	permute(a, 0, func(a []int) {
		results = append(results, a)
	})
	return results
}

func permute(a []int, start int, f func([]int)) {
	if start >= len(a) {

shanab

Essential Apps

• Blink: Install Blink on your iPad
• Tailscale: Install Tailscale on all your devices.
• mosh: Install mosh on all your devices. It comes with Blink by default.

Nice to have apps

Amphetamine for Mac