Tutorial by Topics: ons

UPPERCASE your constant: Writing constant in capital is a common best practice used in many languages. It's also useful to clearly identify the nature of injected elements: When you see .controller('MyController', function($scope, Profile, EVENT)), you instantly know that: $scope is an angular...

CREATE [OR REPLACE] FUNCTION function_name [ (parameter [,parameter]) ] RETURN return_datatype IS | AS [declaration_section] BEGIN executable_section [EXCEPTION exception_section] END [function_name];

Option Strict { On | Off } Option Strict On is a recommended good practice with Visual Basic .Net. It helps you as the developer to produce cleaner, more stable, more bug-free, more maintainable code. In some cases it may also help you write programs with better performance, avoiding thing...

AutoHotkey used to heavily rely on labels until version 1.1.20. It's reliance on labels had very serious disadvantages. The main one being that labels usually execute in the global scope meaning that any variable defined within a label will be globally available. This sounds great until you realiz...

MY_CONSTANT_NAME = "my value" Constants are useful in Ruby when you have values that you do not want to be mistakenly changed in a program, such as API keys.

A text object in Vim is another way to specify a chunk of text to operate on. They can be used with operators or in visual mode, instead of motions.

List of string functions (Alphabetically sorted): Ascii Char Charindex Concat Difference Format Left Len Lower Ltrim Nchar Patindex Quotename Replace Replicate Reverse Right Rtrim Soundex Space ...

The Fourier transform decomposes a function of time (a signal) into the frequencies that make it up, similarly to how a musical chord can be expressed as the amplitude (or loudness) of its constituent notes. The Fourier transform of a function of time itself is a complex-valued function of frequen...

Entity Framework Code-First provides a set of DataAnnotation attributes, which you can apply to your domain classes and properties. DataAnnotation attributes override default Code-First conventions. System.ComponentModel.DataAnnotations includes attributes that impacts on nullability or siz...

Subscriptions are means to listen to inputs. Incoming ports, keyboard or mouse events, WebSocket messages, geolocation and page visibility changes, all can serve as inputs.

RSpec::Expectations lets you express expected outcomes on an object using an example-based DSL syntax. This topic gives examples of how to expect test results in RSpec using expect .to and the many built-in matchers. This functionality is provided by the rspec-expectations gem.