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Juhana Jauhiainen

A full stack developer experienced with React, Node.js, Django and PostgreSQL

Why you should use the URL to store state in your application

Why you should use the URL to store state in your application

Reactions 78 Comments 3
4 min read
What are HTTP cookies

What are HTTP cookies

Reactions 5 Comments 1
4 min read
How to make TypeScript understand Array.filter

How to make TypeScript understand Array.filter

Reactions 37 Comments 2
2 min read
Why Docker is eating your disk space

Why Docker is eating your disk space

Reactions 68 Comments
3 min read
How to type an object with exclusive-or properties in TypeScript

How to type an object with exclusive-or properties in TypeScript

Reactions 10 Comments
6 min read
Advanced Django queries

Advanced Django queries

Reactions 21 Comments
6 min read
Convert an array to a map in JavaScript

Convert an array to a map in JavaScript

Reactions 5 Comments 1
4 min read
Hidden gems of the Chrome DevTools, Part 2: CSS tools

Hidden gems of the Chrome DevTools, Part 2: CSS tools

Reactions 2 Comments
2 min read
Creating layouts with CSS grids

Creating layouts with CSS grids

Reactions 7 Comments
6 min read
Create a retro text effect with CSS

Create a retro text effect with CSS

Reactions 6 Comments
4 min read
Hidden gems of the Chrome DevTools, Part 1: The Console API

Hidden gems of the Chrome DevTools, Part 1: The Console API

Reactions 41 Comments
5 min read
Setup Spectron and Testing Library to effectively test your Electron.js application

Setup Spectron and Testing Library to effectively test your Electron.js application

Reactions 11 Comments
6 min read
How using Testing Library will help you improve the accessibility of your application

How using Testing Library will help you improve the accessibility of your application

Reactions 24 Comments 2
3 min read
Mocking GraphQL APIs with Mock Service Worker

Mocking GraphQL APIs with Mock Service Worker

Reactions 8 Comments 1
4 min read
Creating a VS Code theme

Creating a VS Code theme

Reactions 11 Comments 1
5 min read
A Tailwind CSS plugin for adding gradient masks

A Tailwind CSS plugin for adding gradient masks

Reactions 10 Comments 1
3 min read
Use useReducer to manage complex state

Use useReducer to manage complex state

Reactions 18 Comments
3 min read
Manage React state with the useContext hook

Manage React state with the useContext hook

Reactions 6 Comments
3 min read
Make custom marker displaying users location and direction with react-native-maps on iOS

Make custom marker displaying users location and direction with react-native-maps on iOS

Reactions 6 Comments
3 min read
What is React Strict Mode?

What is React Strict Mode?

Reactions 18 Comments
1 min read
Access DOM element in a child component in React

Access DOM element in a child component in React

Reactions 7 Comments
1 min read
Customize Django admin with list_display property

Customize Django admin with list_display property

Reactions 6 Comments
3 min read
Using namedtuple to create simple data objects in Python

Using namedtuple to create simple data objects in Python

Reactions 6 Comments 1
3 min read
Introduction to relative CSS units

Introduction to relative CSS units

Reactions 5 Comments 2
3 min read
Create a React Hook to show the browsers online status

Create a React Hook to show the browsers online status

Reactions 9 Comments
2 min read
Making API calls in React useEffect

Making API calls in React useEffect

Reactions 6 Comments
3 min read
Dark mode using prefers-color-scheme rule and CSS variables

Dark mode using prefers-color-scheme rule and CSS variables

Reactions 6 Comments 1
2 min read
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