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JavaScript Interview - The rice and chessboard problem

In ancient times, a wise person presented a challenge to a curious king: place 1 grain of rice on the first square of a chessboard, and for each subsequent square, double the number of grains.

For example:

• 1st square → 1 grain
• 2nd square → 2 grains

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Firebase REST API

This document explains how to configure Firebase as a REST API, as well as some common pain points and tips.

Initial setup

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Practice: TypeScript arrays

Intro

• For this exercise, you can work on your local environment (if you have the TypeScript compiler installed).

• Or, if you prefer, you can work on an online editor like Stackblitz. For example, you can write your TypeScript code here:
  

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Practice: TypeScript functions

Intro

• For this exercise, you can work on your local environment (if you have the TypeScript compiler installed).

• Or, if you prefer, you can work on an online editor like Stackblitz. For example, you can write your TypeScript code here:
  

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PostgreSQL Data Types Cheatsheet

Here's a list with some of the most common data types in PostgreSQL.

Boolean

• BOOLEAN - a Boolean data type can hold one of three possible values: true, false, or null.

Character Types:

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PostgreSQL Example DB

Users Table

CREATE TABLE users (
    user_id SERIAL PRIMARY KEY,

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Practice: PostgreSQL setup & first steps

Iteration 1 - Setup:

Follow the instructions in the unit "SQL | Introduction" to install PostgreSQL in your computer (you'll find instructions for each operating system: windows, mac, linux).

Important

Remember the credentials (username and password). \

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Module 1:

• VS Code Shortcuts: https://gist.github.com/luisjunco/2c57a9f514a5773242afe8f96b342cbd

Module 2:

• React conditional rendering: https://gist.github.com/luisjunco/7eab10cd2991fab11a759add4a15b7cc
• React forms: https://gist.github.com/luisjunco/6c59bc3ea6a1d0b3a975d15ff2115fec
• React Router: https://gist.github.com/luisjunco/cbd1fe157c7f2f2b6b4983adbea9ae1e
• How to implement image upload in project2 (without backend): https://gist.github.com/Aleale81/d45c715aae448b981fa865cd2acf6176

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LAB React Components

The main goal of this LAB is to practice creating and rendering React components.

Iteration 1: initial setup

For the initial setup, follow these steps:

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JS OOP Bakery exercise

In this exercise, you'll be creating a Bakery class using JavaScript. This class will represent a bakery and have some properties and methods to track the bakery's location, the number of cakes in stock, and the ability to bake cakes.