| defmodule RequestHelper do | |
| @moduledoc """ | |
| Reference from https://gist.github.com/avdi/7990684 | |
| Stream download large file from url | |
| """ | |
| require Logger | |
| @doc """ | |
| Get stream data from url | |
| mode could be `:binary` or `:line` |
| defmodule DateTimeParser do | |
| @mapping %{ | |
| "H" => "(?<hour>\\d{2})", | |
| "I" => "(?<hour12>\\d{2})", | |
| "M" => "(?<minute>\\d{2})", | |
| "S" => "(?<second>\\d{2})", | |
| "d" => "(?<day>\\d{2})", | |
| "m" => "(?<month>\\d{2})", | |
| "y" => "(?<year2>\\d{2})", | |
| "Y" => "(?<year>-?\\d{4})", |
If your Mac is out-of-order or you otherwise cannot download macOS from the App Store, you can still create a bootable OS X recovery USB, and you can use that to create an Installer USB.
The downloads used in this process are legal and freely avaliable - including disk images directly from Apple's IT support pages, and open source utilities for extracting and converting pkg, dmg, and HFS+.
Mục đích bài viết này để
Concurrent Programming hiểu đơn giản là việc lập trình cho phần mềm có thể chia nhỏ tác vụ và chạy đồng thời, độc lập với nhau. Elixir là ngôn ngữ lập trình được
| function stringToSlug(str) { | |
| // remove accents | |
| var from = "àáãảạăằắẳẵặâầấẩẫậèéẻẽẹêềếểễệđùúủũụưừứửữựòóỏõọôồốổỗộơờớởỡợìíỉĩịäëïîöüûñçýỳỹỵỷ", | |
| to = "aaaaaaaaaaaaaaaaaeeeeeeeeeeeduuuuuuuuuuuoooooooooooooooooiiiiiaeiiouuncyyyyy"; | |
| for (var i=0, l=from.length ; i < l ; i++) { | |
| str = str.replace(RegExp(from[i], "gi"), to[i]); | |
| } | |
| str = str.toLowerCase() | |
| .trim() |
| After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work. | |
| The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0." | |
| Database files have to be updated before starting the server, here are the steps that had to be followed: | |
| # need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default | |
| brew unlink postgresql | |
| brew install postgresql@9.6 | |
| brew unlink postgresql@9.6 | |
| brew link postgresql |
| defmodule MyBlog.Repo.Migrations.CreatePost do | |
| use Ecto.Migration | |
| def change do | |
| create table(:posts, primary_key: false) do | |
| add :id, :uuid, primary_key: true | |
| add :body, :string | |
| add :word_count, :integer | |
| timestamps |
| def download_video(Episode[filename: filename] = episode) do | |
| Stream.resource(fn -> begin_download(episode) end, | |
| &continue_download/1, | |
| &finish_download/1) | |
| |> File.stream_to!(filename) | |
| |> Stream.run | |
| end | |
| def begin_download(Episode[video_url: video_url, | |
| account: Account[login: login, |
