dhh

Vim Manipulation Cheat Sheet

Action

Key	Result
v	select
y	copy (yank)
c	change
d	delete

alexrudall

How to add ChatGPT streaming to your Ruby on Rails 7 app!

This guide will walk you through adding a ChatGPT-like messaging stream to your Ruby on Rails 7 app using ruby-openai, Rails 7, Hotwire, Turbostream, Sidekiq and Tailwind. All code included below!

Want more content like this, for free? Check out my free book, RailsAI!

• Follow me on Twitter for more Ruby AI at https://twitter.com/alexrudall
• Released under the MIT License - use as you wish :)

kddnewton

require "json"

struct = { "a" => 1, "b" => 2, "c" => [1, 2, 3], "d" => [{ "e" => 3 }, nil, false, true, [], {}] }
source = JSON.dump(struct)

tokens = []
index = 0

until source.empty?
  tokens <<

stefanthoss

import json
from pyspark.sql.types import *

# Define the schema
schema = StructType(
    [StructField("name", StringType(), True), StructField("age", IntegerType(), True)]
)

# Write the schema
with open("schema.json", "w") as f:

aidanbon

/*
 * Enhance Avro to support data validation via Regular Expression
 */
const avro = require('avsc')

class ValidatedString extends avro.types.LogicalType {
  constructor (attrs, opts) {
    super(attrs, opts)
    this._pattern = new RegExp(attrs.pattern)
  }

nepsilon

How to find the PID of a process using a given port?

Sometimes you have a process you lost the PID, and would like to kill it.

You can use top (or better htop) to search for your process name and press k to kill it. But this isn’t optimal when you aren’t sure of its name. A better alternative is to search by the port opened, for example port 80:

sudo lsof -i :80

bsingr

Copyright (c) 2016 Jens Bissinger

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
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all

cvan

Last Updated: March 2023

IMPORTANT: Ignore the out-of-date steps below for getting Chromium keys.

Instead, read this up-to-date guide (Jan 2023) written by @LearningToPi.

P.S. Thank you to every contributor below who provided tips over the years on what should be a straightforward process: setting up Chromium for local development.

Long live the web!

aaronjwood

import time
import random


class Node:
    def __init__(self, value, left, right):
        self.value = value
        self.left = left
        self.right = right

kracekumar

Writing better python code

---

Swapping variables

Bad code