Jun 07, 2016

Sqlite

For the past few days, I have been writing a lot of SQL queries to query SQLite databases. I had to extract data for reporting purposes from SQLite databases where simple SELECT-FROM-WHERE queries weren’t enough. From this experience, I learnt few tricks that I am sure some of you will be interested in. So today, I will list it all in this blog post.

May 31, 2016

Package Websharper To Mobile App

With WebSharper, it is easy and quick to build Single Page Applications (SPA) in F#. If you followed my blog, you must have noticed that I regularly post about WebSharper functionalities. Building a SPA using F# is one of the reason why I started to look into WebSharper. It is also the subject of one of the first blog post I wrote.

FSharp

May 23, 2016

Inlinve Versus Direct Websharper

In WebSharper, there are two keywords to bind JS code to our F# code - Direct and Inline. The documentation about the attributes can be found here http://websharper.com/docs/translation. I have demonstrated the use of it in previous blog posts: External JS library with WebSharper in F#, Sort, drag and drop in UI Next with Sortable. Although the documentation has some explanation about it, I still feel like it is pretty vague. So today I would like to give more explanation about the differences between Direct and Inline.

FSharp

May 19, 2016

Setup Android Xamarin Forms Fsharp

Sometime setting up a development environment is enough to discourage developers to experiment certain platforms. Most of us (if not all of us) in .NET already heard of Xamarin. But to start working on Xamarin, you need to setup an Android VM and setup the IDE in order to deploy on the Android VM. And it gets worse if, like me, you run Windows on VMWare on OSX (and you want to code in F#). Few months back, Xamarin was kind of a no-no for indie development due to the pricing. But since it merged with Microsoft, it is now free!

FSharp

May 11, 2016

Deploy Websharper Selfhost

Last week I talked about how to read text from an image using a OCR library. I explained the whole process of creating the web app but I omitted to explain the deployment to Azure. So today I would like to fill this gap by showing you how I deployed the selfhosted web app on Azure. This web app makes use of the WebSharper selfhost template which is composed by a WebSharper sitelet mounted on a OWIN selfhost.

FSharp

May 07, 2016

Ocr Websharper Extract Text From Images

Last week I talked about how I used Deedle to make some basic statistics on my expenses. Using my bank statements, I showed how to categorize, group, sum and sort expenses in order to have a better view on where the money goes. It was helpful but I realised that instead of checking each transaction from the bank statement, it would be better to track individual item purchased. A lot of expense trackers work this way. We need to input every expense one by one manually. It takes a lot of time which is why I always ended up not using them. I needed to find a faster way.

FSharp

Apr 20, 2016

Fsharp On Mac

Yesterday, a friend of mine asked me what was the easiest way to get started with F# on Mac. I pointed him to http://fsharp.org/use/mac/ which gives multiple options to install F# on Mac but it doesn’t contain the option of using VSCode with Ionide. Since I think it is the most straight forward way to have an environment setup to use of F# rapidly especially when someone wants to just have a quick look, I decide to write a blog post to go through the installation step by step.

FSharp

Apr 17, 2016

Dealing With Stress And Anxiety

Lately I’ve seen a lot of posts about burnout in the the Software industry blogs. Burnout refers to the lost of motivation, hopelessness at work or life, and lost of interest in anything. Stress and anxiety are symptoms which can lead to it.

Apr 14, 2016

Proxies In Websharper

When I first started to play with WebSharper, everything was nice and clean. I was coding in my own world/sandbox/project whatever you want to call it. But the thing is that most of the time, we don’t start from empty, blank project. What we do instead, is that we write code which integrates with an existing application. I was lucky enough to work on a project with a backend written in F# with a Domain library containing all the application domain written in F# as well.

FSharp

Mar 25, 2016

Var View Lens Listmodel In Websharper Uinext

Last week I needed to make a two way binding for a record with nested lists. More precisely, I needed to observe all changes on this record. This changes included normal members but also lists and I needed to observe changes like adding and removing items.

FSharp

Mar 18, 2016

Websharper Warp

Scripting quick prototypes in WebSharper can sometimes be troublesome. If for each prototype, a new project has to be created or code needs to be commented/uncommented, it can become quite demotivating as too many steps are required. In F#, .fsx files are a great tool to script disposable code. Write some isolated functions, run on FSI and then forget about it.

FSharp
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