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wosephjeber / get_all_regex_matches.ts
Created March 17, 2023 13:03
Get all regex matches in a string
View get_all_regex_matches.ts
function getAllRegexMatches(regex: RegExp, string: string) {
if (regex.constructor !== RegExp) {
throw new Error('not RegExp');
const matches = [];
let match = regex.exec(string);
if ( {
while (match) {
wosephjeber / getAllColors.js
Created October 15, 2020 22:19
Quick and dirty function for scraping colors from web page
View getAllColors.js
function getAllColors() {
const COLOR_CONTAINING_PROPERTIES = ["backgroundColor", "borderTopColor", "borderRightColor", "borderLeftColor", "borderBottomColor", "color"]
let colors = []
let elements = document.querySelectorAll('*')
elements.forEach(element => {
const styles = window.getComputedStyle(element)
wosephjeber /
Last active January 12, 2022 10:30
Inspecting Chrome extension interfaces with React DevTools

Inspecting Chrome extension interfaces with React DevTools

Chrome does not allow extensions to modify other extensions, so React DevTools are not available in the Chrome DevTools interface when inspecting a Chrome extension interface. The React team has provided a standalone app that can be connected manually, but it requires some setup. The React DevTools readme includes some instructions, but they leave out an important step if you're debugging within a Chrome extension.

Here's an overview of how to set this up locally for an extension:

Run the standalone React DevTools app

The easiest way to start the standalone app is:

wosephjeber /
Last active December 2, 2022 11:52
Ecto migration for renaming table with indexes and constraints

Renaming table in Ecto migration

I recently wanted to rename a model and its postgres table in a Phoenix app. Renaming the table was simple and documented, but the table also had constraints, sequences, and indexes that needed to be updated in order for the Ecto model to be able to rely on default naming conventions. I couldn't find any examples of what this would look like but was eventually able to figure it out. For anyone else in the same situation, hopefully this example helps.

In the example below, I'm renaming the Permission model to Membership. This model belongs to a User and an Account, so it has foreign key constraints that need to be renamed.

defmodule MyApp.Repo.Migrations.RenamePermissionsToMemberships do
  use Ecto.Migration
wosephjeber / upgrade_postgres
Last active November 26, 2020 23:03
Upgrade from postgres 9.6.2 to 10.5 on OSX
View upgrade_postgres
## Following these commands should upgrade and migrate your existing database.
## This is an example of going from 9.6.2 to 10.5 on OSX.
## Be sure to update any version numbers based on the versions you're upgrading from and to.
## Adapted from
## Backup your database, just in case (replace databasename with your actual DB name)
pg_dump databasename > ~/Desktop/dev_dump
## Stop postgres
wosephjeber / git_revision.js
Last active March 16, 2023 11:08
Get branch and commit names from Node (synchronously)
View git_revision.js
const { execSync } = require('child_process');
function executeGitCommand(command) {
return execSync(command)
.replace(/[\n\r\s]+$/, '');
const BRANCH = executeGitCommand('git rev-parse --abbrev-ref HEAD');
const COMMIT_SHA = executeGitCommand('git rev-parse HEAD');
wosephjeber / name_form.jsx
Last active October 6, 2019 22:19
Render Props vs Higher Order Components
View name_form.jsx
import React, { Component } from 'react'
import PropTypes from 'prop-types'
class NameForm extends Component {
constructor() {
this.state = { value: '' }
wosephjeber /
Last active September 3, 2020 05:11
Find and kill ruby process using specified port
# Puma occasionally doesn't kill all ruby processes when
# I shut down my local web server. Here are the steps
# to find and kill the processes.
# Find pid of process running on specified port
lsof -i :3000
# Kill process
sudo kill -9 [pid]
wosephjeber /
Last active February 21, 2023 22:27
Installing ngrok on Mac

Installing ngrok on OSX

For Homebrew v2.6.x and below:

brew cask install ngrok

For Homebrew v2.7.x and above:

wosephjeber /
Last active May 9, 2018 15:29
Instructions for setting up a local copy of our MODX installation

Here's an outline of the instructions for creating a local dev copy of our MODX installation:

####1. Package and download files from server You'll want to tar and gzip the files on the server for two reasons. First and foremost, it will be faster when you download the files via FTP. Downloading one 100mb file is significantly faster than downloading one hundred 1mb files. Secondly, we want to avoid the potential of messing with hidden files and permissions/ownership.

Use the tar command with gzip enabled: tar -czvf path_to_target path_to_source. For example, to package up the assets directory, you might run tar -czvf backup/assets.tar.gz assets/. This will package and compress the assets directory and save it as a .tar.gz file in the backup directory. You can then download that file via Transmit or another FTP client.

####2. Dump production database and import to local database Use Sequel Pro to export the production database and import it locally. You can name the local database whatever you'd