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@stephenhardy
stephenhardy / git-clearHistory
Created April 26, 2013 22:14
Steps to clear out the history of a git/github repository
-- Remove the history from
rm -rf .git
-- recreate the repos from the current content only
git init
git add .
git commit -m "Initial commit"
-- push to the github remote repos ensuring you overwrite history
git remote add origin git@github.com:<YOUR ACCOUNT>/<YOUR REPOS>.git
@theankitgaurav
theankitgaurav / functionalArrayMethods.md
Created November 4, 2016 16:37
JavaScript Map, Filter, Reduce methods Cheatsheet

map()

Use it when: You want to translate/map all elements in an array to another set of values.

Example: convert Fahrenheit temps to Celsius.

var fahrenheit = [0, 32, 45, 50, 75, 80, 99, 120];

var celcius = fahrenheit.map(function(elem) {
@odigity
odigity / Firebase Database API Cheatsheet
Last active June 9, 2022 03:45
Firebase Database API Cheatsheet
There is no way to store an empty object/array/null value.
There are also no actual arrays. Array values get stored as objects with integer keys.
(If all keys are integers, it will be returned as an array.)
Basically, it's one giant tree of hashes with string keys.
Simply write a value to any location, and the intermediary locations will automatically come into existance.
── Classes ──
DataSnapshot : Container for a subtree of data at a particular location.
@randallreedjr
randallreedjr / heroku-remote.md
Last active April 25, 2024 07:06
Add a Heroku remote to an existing git repo

Working with git remotes on Heroku

Generally, you will add a git remote for your Heroku app during the Heroku app creation process, i.e. heroku create. However, if you are working on an existing app and want to add git remotes to enable manual deploys, the following commands may be useful.

Adding a new remote

Add a remote for your Staging app and deploy

Note that on Heroku, you must always use master as the destination branch on the remote. If you want to deploy a different branch, you can use the syntax local_branch:destination_branch seen below (in this example, we push the local staging branch to the master branch on heroku.

$ git remote add staging https://git.heroku.com/staging-app.git
@jhwheeler
jhwheeler / bigONotation.js
Last active February 21, 2024 18:36
Big O Notation Exercises
// 1. Even or odd
function isEven(value){
if (value % 2 == 0){
return true;
}
else
return false;
}
@IanCarrasco
IanCarrasco / hyperguide.md
Last active February 22, 2023 10:15
How to Create a Hyper Terminal at a Folder

How to open hyper at current directory.

1.Go to the forked cd_to github repository and download the latest release.(zipped) Download From Github.

2.Within cd_to, open the Hyper folder and drag the cd_to.app file into your Applications folder MacDown Screenshot.

3.Now open up Automator and create a new service. File>New>Service(gear icon).Be sure to save the service with an effective name like "Hyper Terminal at Folder" MacDown Screenshot

<!DOCTYPE html>
<html>
<head><title>SOUND</title></head>
<body>
<div>Frequence: <span id="frequency"></span></div>
<script type="text/javascript">
var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
var oscillatorNode = audioCtx.createOscillator();
var gainNode = audioCtx.createGain();
@edwintcloud
edwintcloud / circular_buffer.py
Created May 7, 2019 18:16
Circular Buffer in Python Full Implementation
#!python
class CircularBuffer(object):
def __init__(self, max_size=10):
"""Initialize the CircularBuffer with a max_size if set, otherwise
max_size will elementsdefault to 10"""
self.buffer = [None] * max_size
self.head = 0