DEV Community

Marcin Wosinek profile picture

Marcin Wosinek

I'm JS developer with 13 years of professional experience. I'm always happy to teach my craft.

Location Valencia, Spain Joined Joined on  Personal website https://how-to.dev/ github website twitter website
How to prioritize test cases in end-to-end testing

How to prioritize test cases in end-to-end testing

Comments
4 min read

Want to connect with Marcin Wosinek?

Create an account to connect with Marcin Wosinek. You can also sign in below to proceed if you already have an account.

Already have an account? Sign in
Divider App: Improving edge cases

Divider App: Improving edge cases

Comments
5 min read
Divider App: How many edge cases can have one operation

Divider App: How many edge cases can have one operation

Comments
5 min read
How to squeeze information from your repository with the command line

How to squeeze information from your repository with the command line

1
Comments
12 min read
Does My Web Application Need End-to-End and Unit Tests?

Does My Web Application Need End-to-End and Unit Tests?

Comments 1
8 min read
Intro to the Terminal: Basic Commands That Will Help You Get Started

Intro to the Terminal: Basic Commands That Will Help You Get Started

1
Comments 2
8 min read
Pros and Cons of Keeping Your Code in Monorepo

Pros and Cons of Keeping Your Code in Monorepo

Comments
7 min read
How to keep your units testable in JavaScript

How to keep your units testable in JavaScript

1
Comments
8 min read
What a security operations center analyst does and how to become one

What a security operations center analyst does and how to become one

1
Comments 1
4 min read
The Hitchhiker’s Guide to the Command Line

The Hitchhiker’s Guide to the Command Line

Comments
8 min read
Getting into tech with no IT background: Tips & stories

Getting into tech with no IT background: Tips & stories

4
Comments
8 min read
Why do developers use shell?

Why do developers use shell?

Comments
5 min read
Is jQuery still relevant?

Is jQuery still relevant?

6
Comments 1
4 min read
Rebases in Git and why you shouldn’t be afraid of them

Rebases in Git and why you shouldn’t be afraid of them

7
Comments 3
7 min read
When Should I Register on GitHub As a Beginner Programmer?

When Should I Register on GitHub As a Beginner Programmer?

2
Comments
2 min read
How to keep your sanity while working with Git

How to keep your sanity while working with Git

2
Comments
6 min read
Why Git is so complicated

Why Git is so complicated

1
Comments
5 min read
The "detached HEAD" state in Git: What it is and how to fix it

The "detached HEAD" state in Git: What it is and how to fix it

6
Comments
5 min read
Searching for an IT job: Comparing the workplace characteristics of IT companies

Searching for an IT job: Comparing the workplace characteristics of IT companies

4
Comments
7 min read
Oh-My-Bill: Project Introduction

Oh-My-Bill: Project Introduction

2
Comments
4 min read
Minor imperfections that shout ‘beginner code’

Minor imperfections that shout ‘beginner code’

6
Comments
4 min read
What Tech Newbies Need According to Industry Insiders

What Tech Newbies Need According to Industry Insiders

13
Comments 5
9 min read
HTML + CSS project: website slicing

HTML + CSS project: website slicing

6
Comments 4
2 min read
How to Become a Faster Programmer

How to Become a Faster Programmer

228
Comments 18
5 min read
The README file: How to Help Others Understand Your Project

The README file: How to Help Others Understand Your Project

8
Comments
3 min read
Beginner Programmer’s Guide to Using Git in a Team

Beginner Programmer’s Guide to Using Git in a Team

2
Comments
7 min read
How To Set Up .gitignore for Your JavaScript Project

How To Set Up .gitignore for Your JavaScript Project

30
Comments 2
4 min read
How to Implement a Basic JavaScript Application

How to Implement a Basic JavaScript Application

4
Comments 2
7 min read
Cómo empezar a hablar un nuevo idioma

Cómo empezar a hablar un nuevo idioma

5
Comments 3
5 min read
How to Collect Inputs for Your Project

How to Collect Inputs for Your Project

1
Comments
4 min read
How to Start Unit Testing with Jasmine

How to Start Unit Testing with Jasmine

Comments
3 min read
Jak zacząć mówić w języku obcym

Jak zacząć mówić w języku obcym

Comments
5 min read
How to Make Your Code Prettier

How to Make Your Code Prettier

4
Comments
3 min read
How to Describe Your Technical Issue

How to Describe Your Technical Issue

3
Comments
9 min read
The Simplest Case for Unit Tests: Pure Functions

The Simplest Case for Unit Tests: Pure Functions

5
Comments
5 min read
How You Can Expand Your Content Skills to Get Closer to Tech

How You Can Expand Your Content Skills to Get Closer to Tech

1
Comments
5 min read
How To Get the Most Out of Your Technical Blog

How To Get the Most Out of Your Technical Blog

3
Comments
7 min read
How to Start Speaking a New Language

How to Start Speaking a New Language

5
Comments 4
5 min read
LanguageTool—Best Offer for Autocorrect Software

LanguageTool—Best Offer for Autocorrect Software

7
Comments
4 min read
What should you learn next as a developer

What should you learn next as a developer

3
Comments
9 min read
Remote IT Mentoring: My Schema for Effective Collaboration

Remote IT Mentoring: My Schema for Effective Collaboration

5
Comments
5 min read
Software Testing and How You Can Use it as a Tech Entry Job

Software Testing and How You Can Use it as a Tech Entry Job

5
Comments 1
7 min read
Jak pisać lepiej — poradnik dla programistów

Jak pisać lepiej — poradnik dla programistów

4
Comments
4 min read
Jak czytać dokumentację

Jak czytać dokumentację

6
Comments
4 min read
What fixing a bug looks like

What fixing a bug looks like

6
Comments 1
4 min read
How Git stores data

How Git stores data

10
Comments
7 min read
How the lack of internal state makes your classes easier to test and refactor

How the lack of internal state makes your classes easier to test and refactor

4
Comments 2
4 min read
Jak pisać testy jednostkowe

Jak pisać testy jednostkowe

3
Comments
4 min read
Cómo escribir pruebas unitarias

Cómo escribir pruebas unitarias

3
Comments
4 min read
How to write better as a developer

How to write better as a developer

10
Comments 2
4 min read
Trucos para impresionar con tu tarea para una entrevista

Trucos para impresionar con tu tarea para una entrevista

4
Comments 2
3 min read
Jak zachwycić zadaniem rekrutacyjnym

Jak zachwycić zadaniem rekrutacyjnym

4
Comments
3 min read
How to read the documentation

How to read the documentation

5
Comments
4 min read
How to work with your programming mentor

How to work with your programming mentor

4
Comments
2 min read
Cómo trabajar con tu mentor de programación

Cómo trabajar con tu mentor de programación

4
Comments
2 min read
Jak współpracować z mentorem programowania

Jak współpracować z mentorem programowania

3
Comments
2 min read
How to write unit tests

How to write unit tests

163
Comments 12
4 min read
Tips for making your interview assignment impressive

Tips for making your interview assignment impressive

7
Comments 2
3 min read
How to work with your programming mentor

How to work with your programming mentor

1
Comments
2 min read
Why do people use the command-line interface (CLI)

Why do people use the command-line interface (CLI)

6
Comments
3 min read
loading...