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Useful prompts

Create unit tests for a Typescript module

I want you to act as a Senior Software Engineer specialized in Typescript. Once I provide the Typescript code, your task is to develop a comprehensive suite of unit tests for a provided Typescript codebase. Follow these guidelines for an effective testing process:

1. Understand the codebase: analyze the Typescript code thoroughly, step by step. Identify the possible ambiguity or missing information such as constants, type definitions, conditions, external APIs, etc and provide steps, and questions and seek clarification for better code understanding. Only proceed to the next step once you have analyzed the codebase fully.

2. Testing framework: for this task, you can assume vitest testing framework is available in the project.

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const React = (() => {
  let hooks = [];
  let idx = 0;

  function useState(initValue) {
    let state = hooks[idx] || initValue;
    let _idx = idx;
    let setState = (newValue) => {
      hooks[_idx] = newValue;
    };

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bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'

# also check https://gist.github.com/rgl/c2ba64b7e2a5a04d1eb65983995dce76

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do $$
	declare
    	data_values record;
begin
   for data_values in (select * from table) 
   loop
	   update table
	    set column_value = (select column_value from another_table where id = data_values.id)
    	where id = data_values.id;
   end loop;

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Aligning images

left alignment

This is the code you need to align images to the left:

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function count_dir {
  ls -1 $1 | wc -l
}

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export JAVA_HOME="/Applications/Android Studio.app/Contents/jre/jdk/Contents/Home"
export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH="$HOME/bin:/usr/local/bin:$JAVA_HOME/bin:$ANDROID_HOME/platform-tools:$ANDROID_HOME/emulator:$PATH"

# Path to your oh-my-zsh installation.
export ZSH="/Users/cbusa/.oh-my-zsh"
export NVM_DIR="${XDG_CONFIG_HOME/:-$HOME/.}nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"

# functions

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# This gist is based on https://philna.sh/blog/2019/01/10/how-to-start-a-node-js-project/
# 1. Configure your npm
npm set init.author.name "Your name"
npm set init.author.email "[email protected]"
npm set init.author.url "https://your-url.com"
npm set init.license "MIT"
npm set init.version "1.0.0"

# 2. Include this function to your bash_profile, e.g. ~/.zshrc
function create-node {

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# This gist is based on https://blog.echobind.com/integrating-prettier-eslint-airbnb-style-guide-in-vscode-47f07b5d7d6a
# Download the ESLint and Prettier extensions for VSCode.
code --install-extension esbenp.prettier-vscode
code --install-extension dbaeumer.vscode-eslint

# Install the ESLint and Prettier libraries into our project. In your project’s root directory, you will want to run: 
npm install -D eslint prettier

# Install the Airbnb config. If you’re using npm 5+, you can run this shortcut to install the 
# config and all of its dependencies: 

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docker container run \
  -e [email protected] \
  -e PGADMIN_DEFAULT_PASSWORD=123456 \
  -p 80:80 \
  dpage/pgadmin4
 
# pgAdmin4 will be available on http://localhost:80