TILs - Fueling Curiosity, One Insight at a Time

npx @changesets/cli init

npx changeset

---
"@myscope/core": minor
"@myscope/cli": patch
---

Add a `--dry-run` flag to the publish command

npx changeset version   # eats the markdown files, bumps versions, writes CHANGELOG.md
npx changeset publish   # publishes whatever isn't on npm yet, and tags it

npx verdaccio # listens on http://localhost:4873

npm adduser --registry http://localhost:4873

npm publish --registry http://localhost:4873

npm install my-package --registry http://localhost:4873

@myscope:registry=http://localhost:4873

annotations: { tailscale.com/funnel: "true" }
ingressClassName: tailscale

bd dolt start
  bd dolt status    # note the port number

Connection Name: <name-here>
  Type: MySQL/Dolt
  URL: <mysql://[email protected]>:<port>/beads

brew install beads
sudo bash -c 'curl -L https://github.com/dolthub/dolt/releases/latest/download/install.sh | bash'
mkdir -p .beads/dolt
dolt clone git+https://github.com/<org>/<repo>.git .beads/dolt/beads
bd dolt start
bd list

bd ready                  # see available work
bd list                   # all issues
bd show <id>              # issue details
bd create --title="..." --type=task --priority=2  # create issue
bd update <id> --claim    # claim work
bd close <id>             # complete work

bd dolt pull              # pull teammate's issues
bd dolt commit            # commit pending changes
bd dolt push              # push your issues

[
    {"name": "Alice"},
    {"name": "Bob"}
  ]

{"name": "Alice"}
  {"name": "Bob"}

decoded = { "user_id" => 1 }

decoded[:user_id]   # => nil ❌
decoded["user_id"]  # => 1

payload = HashWithIndifferentAccess.new(decoded)

payload[:user_id]   # => 1
payload["user_id"]  # => 1

on:
  schedule:
    # Runs at 5:30 AM and 5:30 PM UTC every day
    - cron: '30 5,17 * * *'
    # Runs every 15 minutes
    - cron: '*/15 * * * *'
    # Runs every Monday at 9:00 AM UTC
    - cron: '0 9 * * 1'

pnpm add highlight.js

import hljs from 'highlight.js';
import 'highlight.js/styles/atom-one-dark.css';

const code = `function sum(a, b) { return a + b; }`;
const { value, language } = hljs.highlightAuto(code);

console.log(language); // e.g. "javascript"
console.log(value); // highlighted HTML

git branch --merged | egrep -v "(^\\*|master|main)" | xargs git branch -d

PgBossModule.forRootAsync({
  useFactory: async (config) => ({
    connectionString: config.get('DATABASE_URL'),
  }),
  inject: [ConfigService],
});

const rect = container.getBoundingClientRect();

{
  top: 100,      // Distance from viewport top to element top
  left: 200,     // Distance from viewport left to element left  
  right: 400,    // Distance from viewport left to element right
  bottom: 300,   // Distance from viewport top to element bottom
  width: 200,    // Element width
  height: 200,   // Element height
  x: 200,        // Same as left (for compatibility)
  y: 100         // Same as top (for compatibility)
}

// User drags the slider to compare two images
handleDrag(event) {
  const container = this.getContainer(); // The image container
  const rect = container.getBoundingClientRect();
  
  // Convert global mouse position to slider position
  const x = event.clientX - rect.left;  // Mouse X relative to container
  const percentage = this.calculatePercentage(x, rect.width);
  
  // Update slider position (0-100%)
  this.sliderPosition = percentage;
  this.updateSliderPosition(percentage);
}

# DANGEROUS - can overwrite other people's work
# We do it everyday though
git push --force origin <feature-branch>

# SAFER - includes safety checks
git push --force-with-lease origin feature-branch

lsof -i :3000

COMMAND   PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
node     1234  nived  22u  IPv6  0x...      0t0  TCP *:3000 (LISTEN)

kill 1234

kill -9 1234

# Initialize the app

fly launch

# This creates:
# - fly.toml (basic configuration)
# - .dockerignore
# - Dockerfile

# Create app in specific organization

fly apps create ui-delta-c9s --org c9s-staging

# Set required secrets
# Example

fly secrets set RAILS_MASTER_KEY=$(cat config/master.key) --app ui-delta-c9s
fly secrets set SECRET_KEY_BASE=$(openssl rand -hex 64) --app ui-delta-c9s
fly secrets set RAILS_ENV=production --app ui-delta-c9s

# Option 1: Create new database
fly postgres create --name ui-delta-db --region sin

# Option 2: Attach to shared cluster
fly postgres attach postgres-fire-9606 -a ui-delta-c9s

fly deploy --app ui-delta-c9s

fly proxy 5433:5432 --app <cluster_name>