oskarkv

About

I came up with these exercises for someone learning to code. But I thought more people might want to do them.

I like functional programming, so the exercises asks you to make functions that are common in functional programming. If you have learned a language, but want to learn more about functional programming, these exercises are for you.

The exercises were originally meant for Python, but doing them in JavaScript, Ruby or any Lisp (Scheme, Clojure, …) should work just as well. It should also be possible to do them in Java and C#, but it will probably not be as easy.

Most of the functions you are asked to create already exist in functional languages, or libraries for most languages. But it can be educational to implement them yourself.

h3lls

livecoin:
  enabled: False
  apikey: LIVECOINAPIKEY
  sign: LIVECOINSIG
  max_bid: 0.00011
poloniex:
  enabled: False
  apikey: POLONIEXAPIKEY
  sign: POLONIEXSIG
binance:

westmark

/**
The MIT License (MIT)

Copyright (c) 2017 Fredrik Westmark

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is

shaiguitar

# mount volume PWD on host to /app in container.
shai@lappy ~/tmp/example-working-docker-compose-environment-vars [master *] ± % cat docker-compose.yml
version: "3"
services:
  some_server:
...
    volumes:
      - $PWD:/app

ruben2020

#!/usr/bin/python
import struct
import time
import sys
import dbus
from threading import Thread, Lock

# Copy this file to /usr/bin as root
# Change permissions of this file to 754
# This file in /usr/bin should be owned by root, group is root

romuald

# -*- coding: utf8 -*-
"""
A simple monkeypath for the pstats module to be able to see sub-millisecond timings

If display value is 0.000, display the time in microseconds
"""

import pstats

def f8(x):

140am

""" Simple IPC benchmark test

Test throughput of 512 KB messages sent between two python processes using:

- multiprocessing pipe
- zeroMQ PUSH/PULL
- zeroMQ DEALER/DEALER

Result:

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

mitchwongho

# Assuming an Ubuntu Docker image
$ docker run -it <image> /bin/bash