joshbuchea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

zchee

--- Actions ---
$Copy                                              <M-C>
$Cut                                               <M-X> <S-Del>
$Delete                                            <Del> <BS> <M-BS>
$LRU                                              
$Paste                                             <M-V>
$Redo                                              <M-S-Z> <A-S-BS>
$SearchWeb                                         <A-S-G>
$SelectAll                                         <M-A>
$Undo                                              <M-Z>

wilon

普通模式

	命令	说明 + 示例
	ds	删除括号
例	ds "	"Hello world!" => Hello world!
	cs	替换括号
例	cs "(	"Hello world!" => (Hello world!)
	cS	替换括号，括号内文本做新一行
例	cS "{	"Hello world!" => {     Hello world! }

markbates

If you're writing web applications with Ruby there comes a time when you might need something a lot simpler, or even faster, than Ruby on Rails or the Sinatra micro-framework. Enter Rack.

Rack describes itself as follows:

Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks.

Before Rack came along Ruby web frameworks all implemented their own interfaces, which made it incredibly difficult to write web servers for them, or to share code between two different frameworks. Now almost all Ruby web frameworks implement Rack, including Rails and Sinatra, meaning that these applications can now behave in a similar fashion to one another.

At it's core Rack provides a great set of tools to allow you to build the most simple web application or interface you can. Rack applications can be written in a single line of code. But we're getting ahead of ourselves a bit.

rantav

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

obstschale

Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Hint: I also mad an octave docset for Dash: https://github.com/obstschale/octave-docset

Basics

aodin

package main

import (
	"encoding/json"
	"io/ioutil"
	"log"
	"net/http"
)

type Message struct {

taion

const redisClient = redis.createClient(REDIS_URL);
const listeners = Object.create(null);

function addListener(channel, listener) {
  if (!listeners[channel]) {
    listeners[channel] = [];
    redisClient.subscribe(channel);
  }

  listeners[channel].push(listener);

fnichol

A Common .ruby-version File For Ruby Projects

Background

I've been using this technique in most of my Ruby projects lately where Ruby versions are required:

• Create .rbenv-version containing the target Ruby using a definition name defined in ruby-build (example below). These strings are a proper subset of RVM Ruby string names so far...
• Create .rvmrc (with rvm --create --rvmrc "1.9.3@myapp") and edit the environment_id= line to fetch the Ruby version from .rbenv-version (example below).

Today I learned about another Ruby manager, rbfu, where the author is using a similar technique with .rbfu-version.

joshbirk

var fs = require("fs")
var ssl_options = {
  key: fs.readFileSync('privatekey.pem'),
  cert: fs.readFileSync('certificate.pem')
};
     
var port = process.env.PORT || 3000;
var express = require('express');
var ejs = require('ejs');
var passport = require('passport')