Understand the difference between Direct and Inline attributes in 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

Setup your environment to build an Android app with Xamarin.Forms in F# From VMare Windows running on OSX 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

Deploy your WebSharper selfhosted web app on Azure 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

Extract text from images in F# - OCR’ing receipts!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 [...]

A primer on manipulating data frame with Deedle in F#The first time I encountered Deedle was from @brandewinder book Machine learning projects for .NET developers. Deedle is a library which facilitates the manipulation of data frames and data series.http://bluemountaincapital.github.io/Deedle/A data frame is like a table with rows and columns where columns don’t need need to be of same type. A data series is like a vector (an array of values) where each value is itself a key value pair. A very famous data [...]