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High level style in javascript.

Opinions are like assholes, every one has got one.

This one is mine.

Punctuation: who cares?

Punctuation is a bikeshed. Put your semicolons, whitespace, and commas where you like them.

@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@andreyvit
andreyvit / tmux.md
Created June 13, 2012 03:41
tmux cheatsheet

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

@dypsilon
dypsilon / frontendDevlopmentBookmarks.md
Last active September 25, 2025 20:45
A badass list of frontend development resources I collected over time.

build

Clone and build Node for analysis:

$ git clone https://github.com/joyent/node.git
$ cd node
$ export GYP_DEFINES="v8_enable_disassembler=1"
$ ./configure
$ make -j4
@trevnorris
trevnorris / perf-flame-graph-notes.md
Last active September 30, 2025 01:16
Quick steps of how to create a flame graph using perf

The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.

When you want to generate the flame graph, run the following (folder locations taken from install script):

sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0
@staltz
staltz / introrx.md
Last active October 22, 2025 12:20
The introduction to Reactive Programming you've been missing
@bsweger
bsweger / useful_pandas_snippets.md
Last active October 6, 2025 13:44
Useful Pandas Snippets

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

@trevnorris
trevnorris / all-my-knowledge.md
Last active December 9, 2017 00:39
Here's a rundown of everything I use to do performance analysis in Node.

Introduction

Here is a collection of tips and tricks I've picked up about doing performance analysis on Node. Included is a build script that should get a base install of Ubuntu fully functional and ready for all the things we'll be going through.

The script pulls a lot of code from the latest master of each repository. So it's possible that something may fail, but to date I haven't had any issues.

First, go ahead and run the script. Then go take a nice long break. It'll

@kachayev
kachayev / concurrency-in-go.md
Last active September 23, 2025 16:12
Channels Are Not Enough or Why Pipelining Is Not That Easy