tuxfight3r

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line

fphilipe

CREATE EXTENSION btree_gist;

CREATE TABLE room_reservations (
    room_id integer,
    reserved_at timestamptz,
    reserved_until timestamptz,
    canceled boolean DEFAULT false,
    EXCLUDE USING gist (
        room_id WITH =, tstzrange(reserved_at, reserved_until) WITH &&
    ) WHERE (not canceled)

kshchepanovskyi

About default value for message fields

If field type is message, what should getter return if it is not set?

Proto2 specification does not define default value for message type, it is defined only for scalar types:

If the default value is not specified for an optional element, a type-specific

slayerfat

<?xml version="1.0" encoding="UTF-8"?>
<ruleset name="Laravel and similar phpmd ruleset"
    xmlns="http://pmd.sf.net/ruleset/1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd"
    xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd">
  <description>
    Inspired by https://github.com/phpmd/phpmd/issues/137
    using http://phpmd.org/documentation/creating-a-ruleset.html
  </description>

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

jjjake

Downloading and Syncing Archive.org Collections

Following are instructions on how to use the Internet Archive command-line tool, "ia", to download a collection from Archive.org and keep it synced. The only requirements are that you have Python 2 installed on a Unix-like operating system (i.e. Mac OS X, Linux).

Downloading and Configuring the Ia Command-Line Tool

1. Download the latest binary of the ia command-line tool:

Two9A

<?php
/**
 * Dirty, dirty Reddit bot: Decronym
 */

class Reddit {
    const USERNAME = 'Decronym';
    const PASSWORD = '***';
    const CLIENTID = '***';
    const SECRET   = '***';

ishu3101

Transfer a gist to a GitHub repository

clone the gist

git clone https://gist.github.com/ishu3101/6fb35afd237e42ef25f9

rename the directory

mv 6fb35afd237e42ef25f9 ConvertTo-Markdown

change the working directory to the newly renamed directory

cd ConvertTo-Markdown

list27.txt

000(023Rb|001Rb)
001(017La|002Rb)
002(021La|003Rb)
003(021La|004La)
004(009Rb|005Lb)
005(004Ra|005La)
006(008La|007La)
007(009Rb|007La)
008(009Ra|008La)
009(010Ra|026Ra)

FrankHB

FAQ

包含若干待定整理内容。

待补充

const/常量表达式(constant expression) 的联系和不同。

参考：