Tutorial by Topics: as

A Kotlin class may implement an interface by delegating its methods and properties to another object that implements that interface. This provides a way to compose behavior using association rather than inheritance.

Flask-SQLAlchemy is a Flask extension that adds support for the popular Python object relational mapper(ORM) SQLAlchemy to Flask applications. It aims to simplify SQLAlchemy with Flask by providing some default implementations to common tasks.

It is a simple integration of Flask and WTForms. It allows for the easier creation and management of web forms, it automatically generates a CRSF token hidden field in your templates. It also features easy form validation functions

Update your Sass version using gem / ruby

Getting started guide using Sass exentsion Compass. Compass is very useful when dealing with CSS3 as it provides mixins to write 1 line in order to support every browser using CSS3 features. It is also great to include sprite images.

As AppDynamics aims to provide a way to measure application performance, speed of development, delivery (deployment) of applications is an essential factor in making DevOps efforts a true success. Monitoring a TIBCO BW application with AppD is generally simple and not time consuming but when deploy...

First, I have to say. There is a reason this Proxy thing, despite its seeming usefulness, is not highlighted enough on the Internet. You cannot use it to watch a random property of a random class/instance. You are only allowed to use this technique by subclassing the Proxy class. Some operations d...

This is for the readers who come from relational background and want to learn elasticsearch. This topic shows the use cases for which Relational databases are not a suitable option.

Tastypie is a webservice API framework for Django. It provides a convenient, yet powerful and highly customizable abstraction for creating REST-style interfaces. Tastypie makes exposing your models easy, but gives you full control over what you expose, letting you abstract away the database as much ...

This topic covers the basics of Kotlin for beginners. Kotlin file has an extension .kt. All classes in Kotlin have a common superclass Any, that is a default super for a class with no supertypes declared(similar to Object in Java). Variables can be declared as val(immutable- assign once) o...

You can create a custom loss function and metrics in Keras by defining a TensorFlow/Theano symbolic function that returns a scalar for each data-point and takes the following two arguments: tensor of true values, tensor of the corresponding predicted values. Note that the loss/metric (for display a...

The standard library <iostream> defines few streams for input and output: |stream | description | |-------|----------------------------------| |cin | standard input stream | |cout | standard output stream | |cerr | standard error (output...

A union-find (or disjoint-set) data structure is a simple data structure a partition of a number of elements into disjoint sets. Every set has a representative which can be used to distinguish it from the other sets. It is used in many algorithms, e.g. to compute minimum spanning trees via Kruskal'...

The MESSAGE statement may be used to interrupt program flow to display short messages to the user. Messages content may be defined in the program's code, in the program's text symbols, or in an independent message class defined in SE91. The maximum length of a message, including parameters pas...

This topic will demonstrate how to download files attached to a detail entity inside Acumatica ERP by using the Contract-Based API. The code snippet above was created using the Json.NET framework (Newtonsoft.Json.dll). To obtain HTTP cookie header from a SOAP response, add a reference to the ...

Batch files allows only 32bit integer calculations , though this can be bypassed with different approaches.

Excel gives functions that will assist in converting from decimal to one of binary, octal and hexadecimal, and back again. Note that there are no leading 0 or 0x in the functions.

Hashtable is a class in Java collections which implements Map interface and extends the Dictionary Class Contains only unique elements and its synchronized