TypeScript type narrowing
Narrowing types in TS, a quick tour
AlsoHelp’s Blog
🚀 Freelance web developer
Latest posts
Input type number alternative
An alternative to the very classic HTML input of type number
Free space on boot partition for Linux Mint
Bug frequently encountered on my Linux Mint machine
How to change Astro NodeJS version
A quick tour about how to change the NodeJS version of your Astro project
Go simplest example
The simplest Go program you can start with.
How to clean and hard refresh Chrome
A way to really clean the cache and weird stuff of Chrome.
Git clean local branches
Let's say your local branches are messy. Here is a quick guide about how to clean 'em up.
The Rails philosophy explained with drawings
It's not easy to understand why Rails was built like this, especially for beginners. I hope my little SVG drawings will help
T vs any in TypeScript
A beginner lesson about T vs any in Typescript
Is TypeScript difficult to learn?
My review about me after having learned TypeScript
TypeScript primitive types
My simple memo about TypeScript primitive types.
Unpoly outclasses Hotwire
Unpoly vs Hotwire... both are pushing the frontend in the same direction, but Unpoly made it with more simplicity. Here is why.
Declare an array in TypeScript
How to declare an array in TypeScript the right way. A small recap, mostly note to self.
Background jobs with Rails 8 are delightful
Rails 8 includes everything you need to run and monitor background jobs. I found this feature to be incredibly relevant.
Where 1 = 1 in SQL
A small, dirty but useful SQL trick
Each child in a list should have a unique key prop
A very classic React bug, so I leave it here as a note to myself for the future :)
How to display git shortsha in terminal
A quick guide about the git shortsha usage and shorcut in terminal
Is React beginner friendly?
My opinion about React for junior developers. Popular it is, job-friendly it is, but is it accessible to junior developers?
My Rails 8 opinion
Rails 8 has been incredibly enjoyable so far, removing large parts of complexity, and allowing devs to replace any parts of the stack.
Get all but last element in TypeScript
A small article about removing last element in TypeScript, mostly a matter of read-ability
Rails 8 Bootstrap 5 tutorial
A very simple tutorial about Rails 8 and Bootstrap 5, since starting with Boostrap is already given by the framework by default with little config.
My honest opinion about Hatchbox
Hatchbox.io is a deployment platform for Ruby-on-Rails users. I used it recently, so for people ashamed of trying, here is my review.
How to install Laravel 11 on Linux
Laravel 11 is the new version of Laravel - at the time of writing. Let's see how to install it on a Ubuntu-based machine.
How to deploy a Rails 7 app to Heroku
Heroku is the most well-known deployment platform, and also the easiest to use. Let's try it on a fresh but realistic Rails 7 application.
How to benchmark Ruby code
Learn how to benchmark (i.e. measure performance) Ruby code in this small article.
Get rid of Rails Failed to allocate memory
This bug is really tricky, so here is my journey solving it. Maybe this will help other not to be too impatient :)
How to generate an open graph image in Ruby
Open graph image allows you to have a nice picture preview on social media. Let's see how to do it in Ruby.
Better tests reporters for Rails 7
Tests reporters help us to increase the readability of our whole test suite. Let's see how to improve the default one.
How to disable Turbo on specific links with Rails
Turbo is precisely made to speed up page transition, but sometimes it's better to have a slower page transition - that works.
How to add or remove a Stimulus controller
A quick memo about how to add or remove a Stimulus controller - I recommend to rely on generator this time.
How to use the reduce method in Ruby
reduce in Ruby seems tricky if you didn't used it for a long time. Principle is simple, but let's see the syntax.
Live reload a Rails 7 application, an unsatisfaying attempt
Livereload a Rails app on your local machine is still not available natively. Maybe in next version of Rails, but not yet.
How to iterate over a Ruby array
A short memo about how to iterate over a Ruby array
Rails 8 Hotwire, a tutorial
Rails 8 comes with Hotwire by default to handle frontend complexity. Here is a simple tutorial from scratch.
Rollup vs Esbuild for Rails
Rollup and Esbuild can both handle JavaScript files in a Rails app. I made some little experiments, both locally and in-production.
Ruby-on-Rails ERB vs HAML
This is an opinionated article about ERB and HAML with Rails. Let's compare each other and pick a winner.
Rails 7 pagination tutorial
Here is a tutorial about how to paginate with Rails 7 and Kaminari.
AI-Unbeaten algorithm exercise - can MBappe join Real Madrid?
Whether MBappé is able to join Real Madrid depends on your ability to write the correct algorithm
Authentication vs Authorization with Rails 7
Authorization means give or refuse access to the current User to some URLs. It's closely bound to Authentication, but it's different.
How to teach algorithms to others now that AI is all over the place
Algorithms are probably one of the only disciplines of web development (maybe with testing) that requires lots of regular training before being mastered and correctly abstracted by the brain. But now that AI is everywhere, and is able to write algorithms, how do you teach students such a practice?
How to find an element inside a Ruby array
A quick article about how to retrieve an element inside a Ruby array.
Why is Ruby-on-Rails not more popular?
If Rails is so good, why is it not more used?
How to check if hash has key in Ruby
With Ruby, there are some cases where you want to check if a given key is already in the hash.
Generate authentication like Rails 8 will
Until recently, Rails comes with no default way to authenticate the user, like Laravel does in the PHP world.
The simplest turbo-frame example
Turbo frame is a powerful feature of Hotwire, here is a quick memo about how to follow conventions in the simplest case. Convention over configuration is powerful, but sometimes it is also a problem when you are not sure anymore about conventions ;) so I plan to release more "simplest *** Hotwire feature".
How to encode an URL String in Ruby
Encoding a String in Ruby may be trickier than I initially thought, given the number of options available. Here is my take.
Rails form_with tutorial
form_with is known as a form helper, which means it's an abstraction to build well-known, standard HTML form.
Tailwind and Ruby-on-Rails starter kit
Today I'm releasing a brand new Ruby-on-Rails starter kit, that mixes Tailwind and Rails.
Rails flash messages and UX
Flash message is a very old notion of Ruby-on-Rails. This article will be focused on the usability of these messages.
Ruby Split Array
A quick tutorial about how to split a Ruby Array.