Skip to content

Instantly share code, notes, and snippets.

@kastnerkyle
kastnerkyle / painless_q.py
Last active August 18, 2023 09:32
Painless Q-Learning Tutorial implementation in Python http://mnemstudio.org/path-finding-q-learning-tutorial.htm
# Author: Kyle Kastner
# License: BSD 3-Clause
# Implementing http://mnemstudio.org/path-finding-q-learning-tutorial.htm
# Q-learning formula from http://sarvagyavaish.github.io/FlappyBirdRL/
# Visualization based on code from Gael Varoquaux gael.varoquaux@normalesup.org
# http://scikit-learn.org/stable/auto_examples/applications/plot_stock_market.html
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.collections import LineCollection
@EtienneR
EtienneR / user.js
Created January 7, 2016 23:39
XMLHttpRequest RESTful (GET, POST, PUT, DELETE)
// Get all users
var url = "http://localhost:8080/api/v1/users";
var xhr = new XMLHttpRequest()
xhr.open('GET', url, true)
xhr.onload = function () {
var users = JSON.parse(xhr.responseText);
if (xhr.readyState == 4 && xhr.status == "200") {
console.table(users);
} else {
console.error(users);
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active March 6, 2026 14:36
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

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!






\