runozo

# RESCAN FOR NEWLY ADDED HDS
echo "- - -" > /sys/class/scsi_host/host#/scan
fdisk -l

# NEW LOGICAL VOLUME
sudo fdisk /dev/sdb
# then create a new partition of type 8e (Linux LVM)
# create a phisical volume
sudo pvcreate /dev/sdb1
# create new volume group

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

james-Ballyhoo

(function(){
    if(document.querySelector("#_CRIT_CSS")){return;}
    var container = document.createElement("div");
    container.id = "_CRIT_CSS";
    container.innerHTML = '<textarea cols=80 rows=20></textarea><button id="CRIT_FIND">Find Critical CSS</button><button id="CRIT_CLOSE">Exit</button>';
    container.style.position = "fixed";
    container.style.top = 0;
    container.style.left = 0;
    container.style.right = 0;
    container.style.backgroundColor = "#FFF";

partial-application-syntax.md

Partial Application Syntax Sugar Proposal (a.k.a. Placeholders)

Summary

This proposal defines syntactic sugar for doing partial application in JS.

ES5 defined the bind method for function that allows partial application from the left, but bind doesn't quite cut it for a more functional style of programming. One issue is that it always binds the magic this of the function. Another one is that you can't apply from left, nor at arbitrary positions. Manually writing out the cases is also very verbose, which is something libraries attempt to solve, but given the prevalence of the pattern, this could be solved on the language level as well.

Detailed Design

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

chrislkeller

/**
 * Retrieves all the rows in the active spreadsheet that contain data and logs the
 * values for each row.
 * For more information on using the Spreadsheet API, see
 * https://developers.google.com/apps-script/service_spreadsheet
 */
function readRows() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var rows = sheet.getDataRange();
  var numRows = rows.getNumRows();

hellerbarde

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

sspencer

// Two ways to serve transparent GIF

var buf = new Buffer([
    0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x01, 0x00, 0x01, 0x00, 
    0x80, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x2c, 
    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 
    0x02, 0x44, 0x01, 0x00, 0x3b]);

res.send(buf, { 'Content-Type': 'image/gif' }, 200);

masaakif

"shove this in ~/.vim/nerdtree_plugin/grep_menuitem.vim
"
" Add 'g' menu items to grep under selected directory.
" 'g' : prompts the user to type search pattern under selected dir.
"       use parent directory if file is selected.
"       This uses ':grep'.
"
" For ripgrep user,
"   NERDTreeRipGrepDirectory function is much, much faster. 
"   Requirements: