axelbdt

How to Install asdf with Nix Home-manager

1. First, add asdf to the Nix configuration with the package named asdf-vm. Add the following line to your configuration.nix file:

   environment.systemPackages = with pkgs; [
     asdf-vm
   ];

PJUllrich

Big-O Time Complexities for Elixir data structures

Map [1]

Operation	Time Complexity
Access	O(log n)
Search	O(log n)
Insertion	O(n) for <= 32 elements, O(log n) for > 32 elements [2]
Deletion	O(n) for <= 32 elements, O(log n) for > 32 elements

phuochau

defmodule MyMacro do
  defmacro create_some_function_by_number(name, num, do: block) do
    params =
      for n <- 1..num do
        {"id#{n}", Macro.var(:"id#{n}", nil)}
      end

    # We can't call Macro.escape because it is for escaping values.
    # In this case, we have a mixture of values "id#{n}" and
    # expressions "Macro.var(...)", so we build the map AST by hand.

chrismccord

Phoenix 1.4.x to 1.5.0 upgrade instructions

Phoenix 1.5 requires Elixir >= 1.7. Be sure your existing version is up to date by running elixir -v on the command line.

Install the new phx.new project generator

$ mix archive.uninstall phx_new
$ mix archive.install hex phx_new 1.5.0

chrismccord

Phoenix 1.4 ships with exciting new features, most notably with HTTP2 support, improved development experience with faster compile times, new error pages, and local SSL certificate generation. Additionally, our channel layer internals receiveced an overhaul, provided better structure and extensibility. We also shipped a new and improved Presence javascript API, as well as Elixir formatter integration for our routing and test DSLs.

This release requires few user-facing changes and should be a fast upgrade for those on Phoenix 1.3.x.

Install the new phx.new project generator

The mix phx.new archive can now be installed via hex, for a simpler, versioned installation experience.

To grab the new archive, simply run:

DanielStormApps

extension String {
    
    /// Checks if the `String` is a valid email address.
    /// ````
    /// // Example
    /// "name@email.com".isValidEmailAddress() // true
    /// "name(at)email(dot)com".isValidEmailAddress() // false
    /// "name@email".isValidEmailAddress() // false
    /// "name@.com".isValidEmailAddress() // false
    /// "name.com".isValidEmailAddress() // false

miguelmota

git clone --recursive https://github.com/WebAssembly/wabt
cd wabt

make
make clang-debug
make gcc-i686-release
make clang-debug-lsan
make gcc-debug-no-re2c

chmod +x bin/

cablespaghetti

#!/bin/bash

# Get directory of script
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

if [[ $# -ne 1 ]]
then
    echo "ERROR: This script expects the namespace name to be given as an argument"
    echo "e.g. ./ecr-cred-updater.sh my-namespace"
    exit 1

uraimo

Switching to DNS over TLS on macOS

How to configure your Mac to use DNS over TLS in five easy steps:

1. Install Stubby with Homebrew (https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Daemon+-+Stubby):

    brew install stubby
   

2. Edit the configuration file:

jarun

prerequisites

• Compile the program in gcc with debug symbols enabled (-g)
• Do NOT strip the binary
• To generate assembly code using gcc use the -S option: gcc -S hello.c

utilities

objdump