Skip to content

Instantly share code, notes, and snippets.

Avatar
💭
What's on my mind ?

Rajeev N Bharshetty rShetty

💭
What's on my mind ?
View GitHub Profile
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active Nov 25, 2020
Useful PostgreSQL Queries and Commands
View postgres_queries_and_commands.sql
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@staltz
staltz / introrx.md
Last active Nov 25, 2020
The introduction to Reactive Programming you've been missing
View introrx.md
@paulirish
paulirish / what-forces-layout.md
Last active Nov 25, 2020
What forces layout/reflow. The comprehensive list.
View what-forces-layout.md

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
View tmux.md

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

# remap prefix to Control + a
@yossorion
yossorion / what-i-wish-id-known-about-equity-before-joining-a-unicorn.md
Last active Nov 22, 2020
What I Wish I'd Known About Equity Before Joining A Unicorn
View what-i-wish-id-known-about-equity-before-joining-a-unicorn.md

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

@blairanderson
blairanderson / DependencyInjectionInRuby.md
Last active Nov 22, 2020
Dependency Injection in Ruby. Originally from Jim Weirich’s blog which does not exist except for googles cache.
View DependencyInjectionInRuby.md

Dependency Injection in Ruby 07 Oct 04

Introduction

At the 2004 Ruby Conference, Jamis Buck had the unenviable task to explain Dependency Injection to a bunch of Ruby developers. First of all, Dependency Injection (DI) and Inversion of Control (IoC) is hard to explain, the benefits are subtle and the dynamic nature of Ruby make those benefits even more marginal. Furthermore examples using DI/IoC are either too simple (and don’t convey the usefulness) or too complex (and difficult to explain in the space of an article or presentation). I once attempted to explain DI/IoC to a room of Java programmers (see onestepback.org/articles/dependencyinjection/), so I can’t pass up trying to explain it to Ruby developers.

Thanks goes to Jamis Buck (the author of the Copland DI/IoC framework) who took the time to review this article and provide feedback.

What is Dependency Injection?

@kachayev
kachayev / concurrency-in-go.md
Last active Nov 18, 2020
Channels Are Not Enough or Why Pipelining Is Not That Easy
View concurrency-in-go.md
@djg
djg / reading-list.md
Last active Nov 16, 2020
Fabian's Recommened Reading List
View reading-list.md
@gaearon
gaearon / slim-redux.js
Last active Nov 14, 2020
Redux without the sanity checks in a single file. Don't use this, use normal Redux. :-)
View slim-redux.js
function mapValues(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
result[key] = fn(obj[key], key);
return result;
}, {});
}
function pick(obj, fn) {
return Object.keys(obj).reduce((result, key) => {
if (fn(obj[key])) {
@speric
speric / poodir-notes.md
Last active Nov 10, 2020
Notes From "Practical Object-Oriented Design In Ruby" by Sandi Metz
View poodir-notes.md

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

  • Single Responsibility Principle: a class should have only a single responsibility
  • Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
  • Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
  • Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.
You can’t perform that action at this time.