Ewa BarczykowskainLevel Up CodingSolve and refactor this problem with me (Count letters in string).Refactoring is rewriting the code without changing its functionality. In this exercise from Codewars…Jul 7Jul 7
Ewa BarczykowskainLevel Up CodingSolve and refactor this problem with me (Codewars cleanup).Refactoring is rewriting the code without changing its functionality. In this exercise I will show you how I refactored my initial longer…Jul 5Jul 5
Ewa BarczykowskainLevel Up CodingExploring Ruby errors — exercise 1.I don’t know about you but errors make me cringe. They make it evident that I am not in control of my code and I don’t like it. This is…Jun 6Jun 6
Ewa BarczykowskainLevel Up CodingFind Estonia SIM cards (by writing some code)A meeting with a friend of mine resulted in me asking myself questions.Jun 4Jun 4
Ewa BarczykowskainLevel Up CodingSolve and refactor this problem with me.Refactoring is rewriting the code without changing its functionality. In this exercise I will show you how I refactored my initial lengthy…Jun 3Jun 3
Ewa BarczykowskainLevel Up CodingHow to extract from a string substrings that start with a certain character.This is a real story from today. I run weekly Ruby sessions at my company and a friend of mine needed some code to filter a string…May 30May 30
Ewa BarczykowskainLevel Up CodingHow to find (with grep) that file on your macSometimes I don’t remember the name of the file but just a word or a phrase that it contains. But I have many files that contain that word…May 28May 28
Ewa BarczykowskainDevOps.devDebugging exercise — Codewars problem: Simple Simple Simple String ExpansionOne way of debugging simpler problems is the look at the code line by line and use p to print variables and verify if those variables…Apr 10Apr 10
Ewa BarczykowskaNotes on mutation in RubyDo you know what it means to mutate an object in Ruby?Feb 10Feb 10
Ewa BarczykowskaAdventures in scope.At first, I thought I needed to understand local variable scoping rules, not to venture into the forbidden land where Ruby throws a…Feb 1Feb 1
