dom96

root@ubuntu-512mb-nyc3-01:~# curl https://nim-lang.org/choosenim/init.sh -sSf | sh
choosenim-init: Downloading choosenim-0.2.2_linux_amd64
      Info: Nim 0.17.2 already downloaded
 Extracting nim-0.17.2.tar.gz
   Building Nim 0.17.2
   Building tools (nimble, nimgrep, nimsuggest)
 Exception: Execution failed with exit code 1
        ... Command: ./koch tools -d:release
        ... Output: bin/nim c --noNimblePath -p:compiler -d:release -o:bin/nimsuggest nimsuggest/nimsuggest.nim
        ... Hint: used config file '/root/.choosenim/toolchains/nim-0.17.2/config/nim.cfg' [Conf]

dom96

var respChan: Channel[(string, string)]
var handlers: Table[string, proc (response: string)]

proc httpLoop() {.async.} =
  while true:
    let (received, resp) = respChan.tryRecv()
    if received:
      handlers[resp[0]](resp[1])
    await sleepAsync(1000)

dom96

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

dom96

import asyncnet, asyncdispatch, strtabs, parseutils, sha1, jester, htmlgen


type
  WebSocketCallback = proc (client: WebSocket, message: WebSocketMessage) {.closure, gcsafe.}
  WebSocketRecvClosure = proc (ws: WebSocket): Future[string] {.gcsafe, closure.}

  WebSocketMessage = ref object
    msg: string

dom96

import os, asyncnet, asyncdispatch
 
type 
  CBOnClientMessage* = proc(message: string)
 
proc handleClient(sockClient: AsyncSocket, cb: CBOnClientMessage) {.async.} =
  while true:
    let line = await sockClient.recvLine()
    if "" == line:
      break

dom96

import strutils
 
import lib
 
type
  UpperScene = object of Scene
  LowerScene = object of Scene
 
proc newUpperScene(): ref UpperScene =
  result = new UpperScene

dom96

import asyncdispatch,  httpclient, os, strutils

# ~/nimbb/nim/bin/nim c --threadAnalysis:off -d:ssl -r tcrawl3.nim 10 300 500
 
var numRunning = 0

var good = 0
var bad = 0
# not used....
var concurrency = 3

dom96

*Main> :l markov.hs 
[1 of 1] Compiling Main             ( markov.hs, interpreted )
Ok, modules loaded: Main.
*Main> let x = markovChain 1 5

<interactive>:1:8:
    No instances for (Num (IO b), Ord (IO b))
      arising from a use of `markovChain' at <interactive>:1:8-22
    Possible fix:
      add an instance declaration for (Num (IO b), Ord (IO b))