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  • title : FsReveal
  • description : Introduction to FsReveal
  • author : Karlkim Suwanmongkol
  • theme : night
  • transition : default

What is FsReveal?


  • A framework for easily creating beautiful presentations using HTML.

Atwood's Law: any application that can be written in JavaScript, will eventually be written in JavaScript.


  • F# tools for generating documentation (Markdown processor and F# code formatter).
  • It parses markdown and F# script file and generates HTML or PDF.
  • Code syntax highlighting support.
  • It also evaluates your F# code and produce tooltips.

Syntax Highlighting

F# (with tooltips)

let a = 5
let factorial x = [1..x] |> List.reduce (*)
let c = factorial a


using System;

class Program
    static void Main()
        Console.WriteLine("Hello, world!");


function copyWithEvaluation(iElem, elem) {
    return function (obj) {
        var newObj = {};
        for (var p in obj) {
            var v = obj[p];
            if (typeof v === "function") {
                v = v(iElem, elem);
            newObj[p] = v;
        if (!newObj.exactTiming) {
            newObj.delay += exports._libraryDelay;
        return newObj;


recur_count k = 1 : 1 : zipWith recurAdd (recur_count k) (tail (recur_count k))
        where recurAdd x y = k * x + y

main = do
  argv <- getArgs
  inputFile <- openFile (head argv) ReadMode
  line <- hGetLine inputFile
  let [n,k] = map read (words line)
  printf "%d\n" ((recur_count k) !! (n-1))

code from NashFP/rosalind


select *
(select 1 as Id union all select 2 union all select 3) as X
where Id in (@Ids1, @Ids2, @Ids3)

sql from Dapper

Bayes' Rule in LaTeX

$ \Pr(A|B)=\frac{\Pr(B|A)\Pr(A)}{\Pr(B|A)\Pr(A)+\Pr(B|\neg A)\Pr(\neg A)} $

The Reality of a Developer's Life

When I show my boss that I've fixed a bug:

When I show my boss that I've fixed a bug

When your regular expression returns what you expect:

When your regular expression returns what you expect

from The Reality of a Developer's Life - in GIFs, Of Course

  • data-background : images/fsharp128.png
  • data-background-repeat : repeat
  • data-background-size : 100px

Slides Properties

Speaker Notes

  • Press s to see a speaker note

' this is a speaker note ' and here we have another one