Jon Nyman jon49

Functional Track talks from NDC London 2017

Also, here is the list of all videos from NDC London 2017:

Wednesday 2017-01-18

TypeScript and currying

In functional programming you often want to apply a function partly. A simple example is a function add. It would be nice if we could use add like:

var res2 = add(1, 3); // => 4

var add10To = add(10);
var res = add10To(5); // => 15

	/**
	* @section General Code Styles
	*/

	code,
	kbd,
	pre,
	samp {
	font-family: Menlo, Monaco, "Courier New", monospace;
	font-size: 0.875em;

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="utf-8">
	<title>Pick at Random</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">

	<link rel="stylesheet" type="text/css" href="pick-at-random.css">
	</head>

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="utf-8">
	<title>Pick at Random</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">

	<style type="text/css">
	body {

	import * as Gun from "gun";

	interface Schema {
	mark: Person;
	}

	var gun = Gun<Schema>();
	gun.put("test"); // should fail
	gun.put(["test"]); // should fail

	function PascalName($name){
	$parts = $name.Split(" ")
	for($i = 0 ; $i -lt $parts.Length ; $i++){
	$parts[$i] = [char]::ToUpper($parts[$i][0]) + $parts[$i].SubString(1).ToLower();
	}
	$parts -join ""
	}
	function GetHeaderBreak($headerRow, $startPoint=0){
	$i = $startPoint
	while( $i + 1 -lt $headerRow.Length)

	// Set up HTML hooks without id or extra classes
	<button data-action="openLogin">Login</button>
	<a href="javascript:;" data-action="openEditor">Link</a>

	// Using [data-action=""] selectors instead of class selectors when binding events in JavaScript
	var actions = {
	openLogin: openLoginWindow,
	openEditor: function() { ... }
	//....
	};

	#==========================================================
	# Environment/Configuration
	#==========================================================

	# For project consistency, its better to depend on npm binaries loaded locally than
	# globally, so we add .node_modules/.bin to the path for shorthand references. This
	# means you should add any binaries you need to "devDependencies" in package.json.
	export PATH := ./node_modules/.bin/:$(PATH)

	# Pull in the name and version from package.json. The name will default to "app" if not set.

	#add 'node_modules' to .gitignore file

	git rm -r --cached node_modules
	git commit -m 'Remove the now ignored directory node_modules'
	git push origin <branch-name>