tkersey

iOS Memory Deep Dive

• vmmap --summary X.memgraph
• vmmap X.memgraph | rg "MEMORY REGION NAME"
• vmmap --verbose X.memgraph | rg "MEMORYREGION"
• leaks --traceTree 0xSTARTINGMEMORYADDRESS
• malloc_history X.memgraph --fullStacks 0xSTARTINGMEMORYADRESS
• Other helpful commands
  • vmmap --pages X.memgraph
  • leaks X.memgraph
• heap X.memgraph

tkersey

#!/bin/sh

# Runs SwiftFormat on changed Swift files in the project.
# The re-formatting may not be caught at commit time, though, and so may require a subsequent commit/amending.

# If any command fails, exit immediately with that command's exit status.
# shellcheck disable=SC3040
set -eo pipefail

# Redirect output to stderr.

tkersey

-- Yoneda --------------------------------------------------------------
newtype Yoneda f a = Yoneda { runYoneda :: forall b. ((a -> b) -> f b) } 

instance Functor (Yoneda f) where
  fmap f y = Yoneda (\ab -> runYoneda y (ab . f))
  
toYoneda :: Functor f => f a -> Yoneda f a
toYoneda fa = Yoneda (\f -> fmap f fa)

fromYoneda :: Yoneda f a -> f a

tkersey

extension LinkerSetting {
    static var mergeable: Self = unsafeFlags([
        "-Wl,-make_mergeable",
        "-Wl,-no_exported_symbols",
    ])
}

tkersey

// https://www.typescriptlang.org/play?#code/PTAEDMEMBsGcFNQAcBOB7JbYEsAu20A7UQUqIAoXATyUQBUUBXRAXlAcIGtC0B3QgbjJkQoXI0SoMWPAWKASogrVEAMRgJQrQvABu8FIOFgAItlgArdgGN8RUAEFQgCiJQAIUU1QAeRQAeOwBpXAD4NUDJQUAAfUABvUUgAcwAuUAAiaHhwXFT+UG0YJhSHAF8wiOi43ESU1JRsBIALbNz86ELXUGKDMnArG2IMrL8ggApW9rsAShTvP0CtXRQQmPDQFHhcBhRiSuq0wezA8cQusmKhXsJrWTX6pp8XUeOUl2mvXwW9QMfY1fXN7axeLJNJ1RqHPIFE6Cc49Po3eB4Bp6OauQIAYVGqzQKBmvgCwX82MIABlMrgUiNIEVJhoQuiiREiAAlO4U0AjABGL1pzHpRLe6N+fw2W2II1WTJQADoqgkNMxWOlyakyhF1QB+UBEMlZEY46XHWmS9UpFls-Uyo2rSYwoSGUDoogWK79eygQDkRK53Ig7IQACaon6sADaBJcAF1uiIAJIAWyQ0GwlkgbocAFoQm4qB540ggyFWFSaXTXAYRABRACODGwrXgV19oB8fO9OcQMfA4ALoRDeYLgX7LkCdiCUaEIgAcvAEqmbgBCOw+0CTtC4YahEYADxLrc++ntImU2BQsFwoFTuHgCfPuDQyHQ-oYlkQkBXM7nulESjhrpuUGwDJ-QAfS0BJgMva8kFwEZaRWVZLmuWxwBxHQUVHYt7Dgk1-jFCBUMWKlbVWUohAids0HAfD1kWVYRHVAA9DV7QiRC3X9NAGE5DJQJnYYRi7SkU2gaBOUgSwOEpaksNLfdeRCOSil+dVQBAE02JuHhIDwYCUJovRMKmFJ92UlS1lFQEtJ0vS0JQIjBBU2EVNwwEuxGKzcF0gi9GIiJznIpRKNADiuJ4sC6LARjmIiejsEQVd1wS4YgjI0AMnPaTCAYONOT0UIQu4+BeISEYOFLDgRg

tkersey

Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array

tkersey

Algebraic Effects in JavaScript part 4 - Implementing Algebraic Effects and Handlers

This is the final part of a series about Algebraic Effects and Handlers.

• Part 1 : continuations and control transfer
• Part 2 : Capturing continuations with Generators
• Part 3 : Delimited continuations
• Part 4 : Implementing Algebraic Effects and handlers

So we've come to the core topic. The reality is that we've already covered most of it in the previous parts. Especially, in the third part, where we saw delimited continuations at work.

tkersey

sudo diskutil eraseDisk FAT32 SDCARD MBRFormat /dev/disk2

tkersey

type term =
  | Lam of (term -> term)
  | Pi of term * (term -> term)
  | Appl of term * term
  | Ann of term * term
  | FreeVar of int
  | Star
  | Box

let unfurl lvl f = f (FreeVar lvl)

tkersey

Embed YouTube Video in Markdown File

1. Markdown style

[![Watch the video](https://img.youtube.com/vi/nTQUwghvy5Q/default.jpg)](https://youtu.be/nTQUwghvy5Q)

2. HTML style

<a href="http://www.youtube.com/watch?feature=player_embedded&v=nTQUwghvy5Q" target="_blank">