When you do have money, the money gives you power… because you don’t have to answer to anybody. - Ben Mallah

It is not the employer who pays the wages. Employers only handle the money. It is the customer who pays the wages. - Henry Ford

The following example handles server and connectivity errors for javascript fetch requests.

 1function handleErrors(response) {
 2    if (!response.ok) throw new Error(response.status)
 3    return response
 4}
 5
 6fetch( …

On this tutorial we’re going to explore the basics of purely functional programming using Scala. One of the principles with purely functional style, is that we have to define concepts in terms of functions.

The basics: Comparing a number

We’re going …

On this page you are going to find some examples of ‘for’ queries.
Let’s start by defining the following database:

 1case class Book(title: String, authors: List[String])
 2
 3val books: List[Book] = List(
 4  Book("structure and interpretation …

Synchronize a model from a live database to Enterprise Architect.

1. Select your database from the Database Model folder in Project Browser.
2. Go to Tools > Database Builder
3. Right click on Tables > Show Differences. We can also click on a different …

Run Pentaho Data Integration on Mac OSX. The following procedure works with all the latest OSX versions.

My local configuration

• OSX Mojave
• OpenJDK 11

Procedure

• Download pdi-ce-8.1.0.0-365.zip from https://sourceforge.net/projects/pentaho/
• Unzip it …

So far I have really liked this concept. The only con is that some times is difficult to find full examples that use the latest version.

Installing sbt

We need sbt for compiling and running Play applications.

brew install sbt@1

Executing a first …

Password forms are challenging for users because we often ask them to enter complex strings which they are usually not allowed to see. Additionally, these strings have to meet different criteria – like having upper and lower case characters, numbers …

From time to time it is necessary to execute a query without using Java’s JPA infrastructure.

In order to do it, we have to define a NamedQuery to execute. In this example, I will run an update against the database.

@Entity
@NamedQueries ({ …