This article is a consolidation of notes from the MDN JavaScript documentation. It answers hypothetical questions with useful method calls. Important details, like mutation, were omitted to mitigate visual clutter. There is also a regex section at the end. I hope it serves as a useful study guide. How do…

A short guide for Rubyists starting JS210 Variables Local variable declaration: let schoolName = 'Launch School'; Constant variable declaration: const SCHOOL_NAME = 'Launch School'; An undeclared variable with global scope: schoolName = 'Launch School'; (don’t do this) camelCase for local variables (and functions) SCREAMING_SNAKE_CASE for constants We can also create variables…

food name | quality | weight | id | taste --------------+---------------+--------+----+------------- Bread | fresh |…

food name | quality | weight | id -----------+---------+--------+---- Apple | ripe | 50 | 1 Bread | fresh | 10 | 2 Cheese | AAA | 25 | 3 Pepperoni | fresh | 25 | 4 (4 rows) recipes name | time | temp…

This article series is for anyone beginning to learn PostgreSQL. It focuses on problem solving and understanding why basic, increasingly complex statements don’t evaluate as expected. Part 2 examines constraints and functions, Part 3 clauses, with joins and duplication all the way through. food name…

This article describes the best practices I picked up during RB101, RB120, and RB130. Its purpose is to structure my learning process going forward, and to help others in the same way that many articles have helped me. For context, I’m currently in RB170 and doing well on assessments. …