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@safeamiiir
safeamiiir / snapp-total-price.js
Last active June 6, 2021 14:33 — forked from arastu/snapp-total-price.js
Total payed snapp
/**
* Open https://app.snapp.ir
* Login with your credentials
* Copy and pasting this code in developer tools console
* Waiting... :)
*/
(async function () {
function sleep(ms = 0) {
return new Promise(r => setTimeout(r, ms));
}
@ahmadmo
ahmadmo / Channel.scala
Last active October 17, 2018 06:39
Go Channels in Scala
import Channel.{Core, Message}
object Channel {
private case class Message[A](value: A, last: Boolean)
private object Message {
private val LAST = Message(null, last = true)
def last[A]: Message[A] = LAST.asInstanceOf[Message[A]]
}
@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