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

Pinned

Johnny Simpson

Sep 25 '22

Using Only CSS to Recreate Windows 98

#showdev #css #webdev #tutorial

128

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

127

3 min read

Cover image for v-show vs v-if: Conditional Rendering in Vue

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

Johnny Simpson

Feb 5 '23

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

#announcement #devto #offers

4 min read

Cover image for Javascript Arrays - How to Remove Duplicate Elements

Johnny Simpson

Feb 4 '23

Javascript Arrays - How to Remove Duplicate Elements

#discuss

1 min read

Johnny Simpson

Feb 4 '23

Javascript Arrays

#cpp #git #github #learning

4 min read

Cover image for Javascript toLowerCase() - Convert Strings to Lowercase

Johnny Simpson

Feb 4 '23

Javascript toLowerCase() - Convert Strings to Lowercase

#javascript #webdev #typescript

1 min read

Cover image for How to Check if Object is Empty in JavaScript

Johnny Simpson

Feb 4 '23

How to Check if Object is Empty in JavaScript

#oauth #security #webdev #frontend

2 min read

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

Johnny Simpson

Feb 4 '23

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

#ai #gpt3 #coding #productivity

3 min read

Johnny Simpson

Feb 4 '23

Javascript innerHTML

#discuss #career #workplace

2 min read

Cover image for Centering Elements in CSS with Tailwind

Johnny Simpson

Feb 4 '23

Centering Elements in CSS with Tailwind

#tailwindcss #javascript #css #webdev

2 min read

Cover image for Getting Started with Redis and Node.JS

Johnny Simpson

Jan 29 '23

Getting Started with Redis and Node.JS

#discuss

2 min read

Cover image for Javascript Array Some Method

Johnny Simpson

Jan 28 '23

Javascript Array Some Method

#gratitude

2 min read

Cover image for Javascript: Check if an Array is a Subset of Another Array

Johnny Simpson

Nov 13 '22

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

#webdev #javascript #typescript #beginners

1 min read

Cover image for Javascript Array Every Method

Johnny Simpson

Nov 13 '22

Javascript Array Every Method

#javascript #webdev #beginners #tutorial

3 min read

Cover image for Creating and Generating UUIDs with Javascript

Johnny Simpson

Nov 13 '22

Creating and Generating UUIDs with Javascript

#javascript #webdev #typescript #tutorial

3 min read

Cover image for Javascript Array Concat Method

Johnny Simpson

Nov 13 '22

Javascript Array Concat Method

#webdev #javascript #tutorial #typescript

3 min read

Cover image for Javascript Immediately invoked function expressions (IIFE)

Johnny Simpson

Nov 6 '22

Javascript Immediately invoked function expressions (IIFE)

#webdev #javascript #tutorial

2 min read

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

Johnny Simpson

Nov 6 '22

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

#javascript #webdev #typescript #tutorial

4 min read

Cover image for Removing the last element of an array in Javascript

Johnny Simpson

Nov 6 '22

Removing the last element of an array in Javascript

#javascript #webdev #beginners #tutorial

2 min read

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

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

Cover image for Git Merge: Merging Changes from other Branches

Johnny Simpson

Oct 25 '22

Git Merge: Merging Changes from other Branches

#git #webdev #tutorial #beginners

3 min read

Cover image for Resolving Git Merge Conflicts

Johnny Simpson

Oct 23 '22

Resolving Git Merge Conflicts

#git #webdev #beginners #programming

5 min read

Cover image for A Step by Step Guide to Git Branches

Johnny Simpson

Oct 23 '22

A Step by Step Guide to Git Branches

#webdev #typescript #git

3 min read

Cover image for Javascript Shallow Copy - what is a Shallow Copy?

Johnny Simpson

Oct 22 '22

Javascript Shallow Copy - what is a Shallow Copy?

#webdev #javascript #typescript #tutorial

3 min read

Cover image for CSS Individual Transform Properties

Johnny Simpson

Oct 22 '22

CSS Individual Transform Properties

#css #webdev #tutorial #beginners

3 min read

Cover image for Javascript Proxy: Using Javascript Proxies like a Pro

Johnny Simpson

Oct 22 '22

Javascript Proxy: Using Javascript Proxies like a Pro

#javascript #typescript #webdev #tutorial

7 min read

Cover image for The Complete Beginners Guide to Getting Started with Git

Johnny Simpson

Oct 22 '22

The Complete Beginners Guide to Getting Started with Git

#github #webdev #tutorial

6 min read

Cover image for What are NodeLists, and how do they work?

Johnny Simpson

Oct 20 '22

What are NodeLists, and how do they work?

#javascript #webdev #tutorial #beginners

3 min read

Cover image for Javascript Add Event Listener to Multiple Elements

Johnny Simpson

Oct 20 '22

Javascript Add Event Listener to Multiple Elements

#javascript #typescript #webdev #beginners

3 min read

Cover image for Javascript Array Filter Method

Johnny Simpson

Oct 17 '22

Javascript Array Filter Method

#javascript #webdev #typescript #beginners

3 min read

Cover image for Javascript Array Reduce Method

Johnny Simpson

Oct 16 '22

Javascript Array Reduce Method

#javascript #webdev #typescript #beginners

4 min read

Cover image for Javascript Array Slice Method

Johnny Simpson

Oct 16 '22

Javascript Array Slice Method

#webdev #javascript #typescript #beginners

3 min read

Cover image for The Difference between TypeScript and Javascript

Johnny Simpson

Oct 16 '22

The Difference between TypeScript and Javascript

#webdev #javascript #typescript #beginners

4 min read

Cover image for How to get the last element of an Array in Javascript

Johnny Simpson

Oct 15 '22

How to get the last element of an Array in Javascript

#javascript #webdev #beginners #typescript

1 min read

Cover image for Updating Object Key Values with Javascript

Johnny Simpson

Oct 15 '22

Updating Object Key Values with Javascript

#webdev #javascript #typescript #beginners

2 min read

Cover image for Waiting for the DOM to be ready in Javascript

Johnny Simpson

Oct 15 '22

Waiting for the DOM to be ready in Javascript

#webdev #javascript #typescript #beginners

2 min read

Cover image for The Essential Guide to Javascript Sets

Johnny Simpson

Oct 13 '22

The Essential Guide to Javascript Sets

#javascript #webdev #tutorial #typescript

4 min read

Cover image for Transporting your Components Anywhere with React Portals

Johnny Simpson

Oct 12 '22

Transporting your Components Anywhere with React Portals

#react #javascript #webdev #tutorial

138

3 min read

Cover image for Setting the Default Node.JS version with nvm

Johnny Simpson

Oct 12 '22

Setting the Default Node.JS version with nvm

#webdev #javascript #typescript

2 min read

Cover image for How to count all files in a directory in Linux

Johnny Simpson

Oct 1 '22

How to count all files in a directory in Linux

#webdev #linux #bash #react

1 min read

Cover image for Python: The Difference Between Sets, Lists, Dictionaries and Tuples

Johnny Simpson

Oct 1 '22

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

#python #webdev #tutorial

2 min read

Cover image for Python Dictionaries: A Complete Guide

Johnny Simpson

Oct 1 '22

Python Dictionaries: A Complete Guide

#python #datascience #webdev

6 min read

Cover image for Python Lists: A Complete Guide

Johnny Simpson

Oct 1 '22

Python Lists: A Complete Guide

#python #webdev #datascience

5 min read

Cover image for Python Sets: A Complete Guide

Johnny Simpson

Oct 1 '22

Python Sets: A Complete Guide

#python #webdev #tutorial

5 min read

Cover image for Python Tuples: A Complete Guide

Johnny Simpson

Oct 1 '22

Python Tuples: A Complete Guide

#python #webdev #tutorial

3 min read

Cover image for How to get all keys in Redis

Johnny Simpson

Oct 1 '22

How to get all keys in Redis

#redis #webdev #tutorial #beginners

1 min read

Cover image for A Complete Guide to Redis Hashes

Johnny Simpson

Oct 1 '22

A Complete Guide to Redis Hashes

#redis #webdev #tutorial #beginners

3 min read

Cover image for A Complete Guide to Javascript Maps

Johnny Simpson

Sep 27 '22

A Complete Guide to Javascript Maps

#javascript #webdev #tutorial #typescript

6 min read

Cover image for Deleting an Item in an Array at a Specific Index

Johnny Simpson

Sep 18 '22

Deleting an Item in an Array at a Specific Index

#javascript #webdev #tutorial #typescript

2 min read

Cover image for Everything you need to know about Javascript Arrays

Johnny Simpson

Sep 18 '22

Everything you need to know about Javascript Arrays

#javascript #webdev #tutorial #typescript

3 min read

Cover image for Inserting an Item into an Array at a Specific Index in Javascript

Johnny Simpson

Sep 18 '22

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

#javascript #webdev #tutorial

2 min read

Cover image for How to Kill a Process Running on a Port

Johnny Simpson

Sep 18 '22

How to Kill a Process Running on a Port

#javascript #webdev #tutorial #linux

2 min read

Cover image for How to delete all keys and everything in Redis

Johnny Simpson

Sep 17 '22

How to delete all keys and everything in Redis

#redis #webdev #tutorial

1 min read

Cover image for Git Stash - Everything about stashing changes in git

Johnny Simpson

Sep 13 '22

Git Stash - Everything about stashing changes in git

#github #git #webdev

4 min read

Cover image for Navigation between views in Vue with Vue Router

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

Cover image for How to make Git ignore file permission (chmod) changes

Johnny Simpson

Sep 4 '22

How to make Git ignore file permission (chmod) changes

#webdev #github #git

1 min read

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

Johnny Simpson

Sep 4 '22

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

#javascript #webdev #tutorial

2 min read

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

Johnny Simpson

Sep 4 '22

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

#vue #webdev #javascript

4 min read

Cover image for Vue Tips: Dynamic CSS with Vue Reactive Variables

Johnny Simpson

Sep 4 '22

Vue Tips: Dynamic CSS with Vue Reactive Variables

#vue #webdev #javascript

2 min read