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@svnlto
svnlto / install.md
Created December 12, 2011 22:59
Setup OS X 10.7 w/ homebrew, oh-my-zsh, rvm, nvm

Setup new Mac with OSX Lion from scratch

These commands are good as of 2011-07-27.

Install Xcode 4

The download/install takes a while so start it first. When it finishes downloading you will still need to run it to complete installation.

Really the nicest choice for a terminal on OSX right now, especially with Lion style full screen support.

@tkellen
tkellen / gist:2003309
Created March 8, 2012 20:41
determining number of weeks between date range in postgres
-- First attempt:
EXPLAIN ANALYZE SELECT count(DISTINCT date_trunc('week',s)) FROM generate_series('1900-01-01'::date,CURRENT_DATE,interval '1 day') AS s;
QUERY PLAN
--------------------------------------------------------------------------------------------------------------------------------
Aggregate (cost=12.51..12.53 rows=1 width=8) (actual time=72.552..72.553 rows=1 loops=1)
-> Function Scan on generate_series s (cost=0.01..10.01 rows=1000 width=8) (actual time=24.495..27.619 rows=40975 loops=1)
Total runtime: 73.005 ms
(3 rows)
SELECT count(DISTINCT date_trunc('week',s)) FROM generate_series('1900-01-01'::date,CURRENT_DATE,interval '1 day') AS s;
@jboner
jboner / latency.txt
Last active November 15, 2024 14:00
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@trcarden
trcarden / gist:3295935
Created August 8, 2012 15:28
Rails 3.2.7 SSL Localhost (no red warnings, no apache config)
# SSL self signed localhost for rails start to finish, no red warnings.
# 1) Create your private key (any password will do, we remove it below)
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key
@dypsilon
dypsilon / frontendDevlopmentBookmarks.md
Last active November 10, 2024 03:45
A badass list of frontend development resources I collected over time.
@tadast
tadast / ssl_puma.sh
Last active January 29, 2024 04:41 — forked from trcarden/gist:3295935
localhost SSL with puma
# 1) Create your private key (any password will do, we remove it below)
$ cd ~/.ssh
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key
@staltz
staltz / introrx.md
Last active November 14, 2024 11:27
The introduction to Reactive Programming you've been missing
@sebmarkbage
sebmarkbage / Enhance.js
Last active November 7, 2024 13:05
Higher-order Components
import { Component } from "React";
export var Enhance = ComposedComponent => class extends Component {
constructor() {
this.state = { data: null };
}
componentDidMount() {
this.setState({ data: 'Hello' });
}
render() {
@danawoodman
danawoodman / 1-react-websockets-reflux.md
Last active August 21, 2024 20:58
Using WebSockets with Reflux and React

WebSockets + Reflux + React

Using WebSockets, React and Reflux together can be a beautiful thing, but the intial setup can be a bit of a pain. The below examples attempt to offer one (arguably enjoyable) way to use these tools together.

Overview

This trifect works well if you think of things like so:

  1. Reflux Store: The store fetches, updates and persists data. A store can be a list of items or a single item. Most of the times you reach for this.state in react should instead live within stores. Stores can listen to other stores as well as to events being fired.
  2. Reflux Actions: Actions are triggered by components when the component wants to change the state of the store. A store listens to actions and can listen to more than one set of actions.
@acdlite
acdlite / flux.js
Last active October 7, 2021 17:19
A Redux-like Flux implementation in <75 lines of code
/**
* Basic proof of concept.
* - Hot reloadable
* - Stateless stores
* - Stores and action creators interoperable with Redux.
*/
import React, { Component } from 'react';
export default function dispatch(store, atom, action) {