Johnny Simpson

Daily dev tips from fjolt.com - Regular tips to help you improve your development skills.

Joined on Nov 15, 2021 https://fjolt.com

Education

UCL

220 posts published

81 comments written

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Johnny Simpson

Sep 25 '22

Using Only CSS to Recreate Windows 98

#showdev #css #webdev #tutorial

123

6 min read

Johnny Simpson

Sep 18 '22

The Difference between TypeScript Interfaces and Types

#typescript #javascript #webdev #tutorial

3 min read

Johnny Simpson

Feb 21 '22

Future Javascript: Records and Tuples

#news #javascript #webdev #tutorial

4 min read

Johnny Simpson

Nov 21 '21

CSS Pixel Art Generator

#javascript #css #webdev #tutorial

124

3 min read

Johnny Simpson

Feb 6 '23

v-show vs v-if: Conditional Rendering in Vue

#vue #webdev #javascript #typescript

2 min read

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Johnny Simpson

Feb 5 '23

Checking if a value is a number in Javascript with isNaN()

#javascript #webdev #tutorial #typescript

4 min read

Johnny Simpson

Feb 4 '23

Javascript Arrays - How to Remove Duplicate Elements

#webdev #javascript #typescript

1 min read

Johnny Simpson

Feb 4 '23

Javascript Arrays

#webdev #javascript #typescript

4 min read

Johnny Simpson

Feb 4 '23

Javascript toLowerCase() - Convert Strings to Lowercase

#javascript #webdev #typescript

1 min read

Johnny Simpson

Feb 4 '23

How to Check if Object is Empty in JavaScript

#webdev #javascript #typescript

2 min read

Johnny Simpson

Feb 4 '23

Javascript Promise.all() - Everything you need to know

#javascript #webdev #typescript

3 min read

Johnny Simpson

Feb 4 '23

Javascript innerHTML

#javascript #webdev #typescript

2 min read

Johnny Simpson

Feb 4 '23

Centering Elements in CSS with Tailwind

#tailwindcss #javascript #css #webdev

2 min read

Johnny Simpson

Jan 29 '23

Getting Started with Redis and Node.JS

#redis #node #javascript #webdev

2 min read

Johnny Simpson

Jan 28 '23

Javascript Array Some Method

#javascript #webdev #tutorial #typescript

2 min read

Johnny Simpson

Nov 13 '22

Javascript: Check if an Array is a Subset of Another Array

#webdev #javascript #typescript #beginners

1 min read

Johnny Simpson

Nov 13 '22

Javascript Array Every Method

#javascript #webdev #beginners #tutorial

3 min read

Johnny Simpson

Nov 13 '22

Creating and Generating UUIDs with Javascript

#javascript #webdev #typescript #tutorial

3 min read

Johnny Simpson

Nov 13 '22

Javascript Array Concat Method

#webdev #javascript #tutorial #typescript

3 min read

Johnny Simpson

Nov 6 '22

Javascript Immediately invoked function expressions (IIFE)

#webdev #javascript #tutorial

2 min read

Johnny Simpson

Nov 6 '22

Javascript loops: for vs forEach vs for.. in vs for.. of

#javascript #webdev #typescript #tutorial

4 min read

Johnny Simpson

Nov 6 '22

Removing the last element of an array in Javascript

#javascript #webdev #beginners #tutorial

2 min read

Johnny Simpson

Nov 5 '22

Javascript Ordinals: Adding st, nd, rd and th suffixes to a number

2 min read

Johnny Simpson

Oct 25 '22

Git: Renaming a Branch

#webdev #beginners #git #github

1 min read

Johnny Simpson

Oct 25 '22

Git Merge: Merging Changes from other Branches

#git #webdev #tutorial #beginners

3 min read

Johnny Simpson

Oct 23 '22

Resolving Git Merge Conflicts

#git #webdev #beginners #programming

5 min read

Johnny Simpson

Oct 23 '22

A Step by Step Guide to Git Branches

#webdev #typescript #git

3 min read

Johnny Simpson

Oct 22 '22

Javascript Shallow Copy - what is a Shallow Copy?

#webdev #javascript #typescript #tutorial

213

3 min read

Johnny Simpson

Oct 22 '22

CSS Individual Transform Properties

#css #webdev #tutorial #beginners

3 min read

Johnny Simpson

Oct 22 '22

Javascript Proxy: Using Javascript Proxies like a Pro

#javascript #typescript #webdev #tutorial

7 min read

Johnny Simpson

Oct 22 '22

The Complete Beginners Guide to Getting Started with Git

#github #webdev #tutorial

6 min read

Johnny Simpson

Oct 20 '22

What are NodeLists, and how do they work?

#javascript #webdev #tutorial #beginners

3 min read

Johnny Simpson

Oct 20 '22

Javascript Add Event Listener to Multiple Elements

#javascript #typescript #webdev #beginners

3 min read

Johnny Simpson

Oct 17 '22

Javascript Array Filter Method

#javascript #webdev #typescript #beginners

3 min read

Johnny Simpson

Oct 16 '22

Javascript Array Reduce Method

#javascript #webdev #typescript #beginners

4 min read

Johnny Simpson

Oct 16 '22

Javascript Array Slice Method

#webdev #javascript #typescript #beginners

3 min read

Johnny Simpson

Oct 16 '22

The Difference between TypeScript and Javascript

#webdev #javascript #typescript #beginners

4 min read

Johnny Simpson

Oct 15 '22

How to get the last element of an Array in Javascript

#javascript #webdev #beginners #typescript

1 min read

Johnny Simpson

Oct 15 '22

Updating Object Key Values with Javascript

#webdev #javascript #typescript #beginners

2 min read

Johnny Simpson

Oct 15 '22

Waiting for the DOM to be ready in Javascript

#webdev #javascript #typescript #beginners

2 min read

Johnny Simpson

Oct 13 '22

The Essential Guide to Javascript Sets

#javascript #webdev #tutorial #typescript

4 min read

Johnny Simpson

Oct 12 '22

Transporting your Components Anywhere with React Portals

#react #javascript #webdev #tutorial

135

3 min read

Johnny Simpson

Oct 12 '22

Setting the Default Node.JS version with nvm

#webdev #javascript #typescript

2 min read

Johnny Simpson

Oct 1 '22

How to count all files in a directory in Linux

#webdev #linux #bash #react

1 min read

Johnny Simpson

Oct 1 '22

Python: The Difference Between Sets, Lists, Dictionaries and Tuples

#python #webdev #tutorial

2 min read

Johnny Simpson

Oct 1 '22

Python Dictionaries: A Complete Guide

#python #datascience #webdev

6 min read

Johnny Simpson

Oct 1 '22

Python Lists: A Complete Guide

#python #webdev #datascience

5 min read

Johnny Simpson

Oct 1 '22

Python Sets: A Complete Guide

#python #webdev #tutorial

5 min read

Johnny Simpson

Oct 1 '22

Python Tuples: A Complete Guide

#python #webdev #tutorial

3 min read

Johnny Simpson

Oct 1 '22

How to get all keys in Redis

#redis #webdev #tutorial #beginners

1 min read

Johnny Simpson

Oct 1 '22

A Complete Guide to Redis Hashes

#redis #webdev #tutorial #beginners

3 min read

Johnny Simpson

Sep 27 '22

A Complete Guide to Javascript Maps

#javascript #webdev #tutorial #typescript

6 min read

Johnny Simpson

Sep 18 '22

Deleting an Item in an Array at a Specific Index

#javascript #webdev #tutorial #typescript

2 min read

Johnny Simpson

Sep 18 '22

Everything you need to know about Javascript Arrays

#javascript #webdev #tutorial #typescript

3 min read

Johnny Simpson

Sep 18 '22

Inserting an Item into an Array at a Specific Index in Javascript

#javascript #webdev #tutorial

2 min read

Johnny Simpson

Sep 18 '22

How to Kill a Process Running on a Port

#javascript #webdev #tutorial #linux

2 min read

Johnny Simpson

Sep 17 '22

How to delete all keys and everything in Redis

#redis #webdev #tutorial

1 min read

Johnny Simpson

Sep 13 '22

Git Stash - Everything about stashing changes in git

#github #git #webdev

4 min read

Johnny Simpson

Sep 8 '22

Navigation between views in Vue with Vue Router

#vue #javascript #webdev #tutorial

5 min read

Johnny Simpson

Sep 5 '22

How to undo a git pull

#webdev #github #git #tutorial

2 min read

Johnny Simpson

Sep 4 '22

How to make Git ignore file permission (chmod) changes

#webdev #github #git

1 min read

Johnny Simpson

Sep 4 '22

What are the three dots (...) or spread operator in Javascript?

#javascript #webdev #tutorial

2 min read

Johnny Simpson

Sep 4 '22

Vue Tips: Optimize your Vue Apps with v-once and v-memo

#vue #webdev #javascript

4 min read

Johnny Simpson

Sep 4 '22

Vue Tips: Dynamic CSS with Vue Reactive Variables

#vue #webdev #javascript

2 min read

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