Tutorial by Examples: ee

The Freer monad

There's an alternative formulation of the free monad called the Freer (or Prompt, or Operational) monad. The Freer monad doesn't require a Functor instance for its underlying instruction set, and it has a more recognisably list-like structure than the standard free monad. The Freer monad represents...

More complext template example

<div *ngFor="let item of items"> <p>{{item.name}}</p> <p>{{item.price}}</p> <p>{{item.description}}</p> </div>

Remove / Add delimiter between words

Remove delimiter The function humanize($words), takes multiple words separated by underscores and adds spaces for underscores with capitalized each word. echo humanize('mac_donald'); // Prints 'Mac Donald' The function can also replace any declared separator/delimiter. In this case, delimiter w...

Complete example : Login/logout a user

Prerequisites This topic is not about Redux and/or Ngrx : You need to be comfortable with Redux At least understand the basics of RxJs and Observable pattern First, let's define an example from the very beginning and play with some code : As a developer, I want to : Have an IUser inter...

Scala Quicksheet

DescriptionCodeAssign immutable int valueval x = 3Assign mutable int valuevar x = 3Assign immutable value with explicit typeval x: Int = 27Assign lazily evaluated valuelazy val y = print("Sleeping in.")Bind a function to a nameval f = (x: Int) => x * xBind a function to a name with expl...

2.EJS file example(refer 1.setting up... before this)

the following is an ejs file. <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Hello, world!</title> </head> <body> <%= message %> </body> </html>

Send Simple Email

public class GoogleMailTest { GoogleMailTest() { } public static void Send(final String username, final String password, String recipientEmail, String title, String message) throws AddressException, MessagingException { GoogleMailTest.Send(username, password, recipientE...

Transition between null states

@Component({ ... animations: [ trigger('appear', [ transition(':enter', [ style({ //style applied at the start of animation }), animate('300ms ease-in', style({ ...

Setting up the environment

Linux/Unix Once you have Progress installed it's very easy to run. You only need a couple of environment variables. The directory where Progress was installed (default /usr/dlc but can be something else) needs to be in the DLC-variable DLC=/usr/dlc And you might also want the "bin" s...

Salesforce ETL tools

Salesforce DataLoader Dataloader.io Jitterbit SFXOrgData DreamFactory Monarch Pentaho Kettle Talend

So here are few screen shots from the admin panel using rails_admin gem.

As you can see the layout of this gem is very catching and user friendly.

Single Element Case Classes for Type Safety

In order to achieve type safety sometimes we want to avoid the use of primitive types on our domain. For instance, imagine a Person with a name. Typically, we would encode the name as a String. However, it would not be hard to mix a String representing a Person's name with a String representing an e...

VectorDrawable Usage Example

Here’s an example vector asset which we’re actually using in AppCompat: res/drawable/ic_search.xml <vector xmlns:android="..." android:width="24dp" android:height="24dp" android:viewportWidth="24.0" android:viewportHeig...

Rebuild the entire database

This is a lot of work, so do this as a last resort after exhausting all other options. You only need to do this if the problem is occurring for different users, on different machines. If it isn't occurring for all users, then most likely it is not a corrupt database container. Similar to the steps...

See and manipulate routes

Manipulate the IP routing table using route Display routing table $ route # Displays list or routes and also resolves host names $ route -n # Displays list of routes without resolving host names for faster results Add/Delete route OptionDescriptionadd or delAdd or delete a route-host x.x.x.xA...

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM

Appearance: "Paamayim Nekudotayim" means "double colon" in Hebrew; thus this error refers to the inappropriate use of the double colon operator (::). The error is typically caused by an attempt to call a static method that is, in fact, not static. Possible Solution: $classname...

Complete example with all styles

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create the WorkSheet ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); //add some dummy data, note that row and column indexes start at 1 for (int i = 1;...

Add an image to a sheet

//get the image from disk using (System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("logo.jpg"))) { var excelImage = worksheet.Drawings.AddPicture("My Logo", image); //add the image to row 20, column E excelImage.SetPo...

Formula with multiple sheets

//set the total value of all cells in Sheet 2 into G27 worksheet.Cells["G27"].Formula = "=SUM('" + worksheet2.Name + "'!" + worksheet2.Dimension.Start.Address + ":" + worksheet2.Dimension.End.Address + ")"; //set the number of cells with conten...

Complete example with formulas

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create 2 WorkSheets ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); ExcelWorksheet worksheet2 = excelPackage.Workbook.Worksheets.Add("Sheet 2"); ...

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