Tutorial by Examples: on

Adding types to a function

Let's take an example of a function which receives two arguments and returns a value indicating their sum: def two_sum(a, b): return a + b By looking at this code, one can not safely and without doubt indicate the type of the arguments for function two_sum. It works both when supplied with ...

Python Language • Type Hints

Disabling inline expansion

Inline expansion can be disabled with the go:noinline pragma. For example, if we build the following simple program: package main func printhello() { println("Hello") } func main() { printhello() } we get output that looks like this (trimmed for readability): $ go ...

Go • Inline Expansion

Configuring multiple environments

This example shows how to configure multiple environments with different Dependency Injection configuration and separate middlewares in one Startup class. Alongside of public void Configure(IApplicationBuilder app) and public void ConfigureServices(IServiceCollection services) methods one can use C...

asp.net-core • Configuring multiple Environments

List a module's functions or macros

The __info__/1 function takes one of the following atoms: :functions - Returns a keyword list of public functions along with their arities :macros - Returns a keyword list of public macros along with their arities To list the Kernel module’s functions: iex> Kernel.__info__ :functions [...

Elixir Language • Modules

Attaching basic events on selections

Often times you will want to have events for your objects. function spanOver(d,i){ var span = d3.select(this); span.classed("spanOver",true); } function spanOut(d,i){ var span = d3.select(this); span.classed("spanOver", false); } var div = d3.select('#divID')...

d3.js • On Events

Installation or Setup

Detailed instructions on getting websphere-mq set up or installed.

IBM MQ • Getting started with IBM MQ

Keyword lists as function parameters

Use keyword lists for 'options'-style parameters that contains multiple key-value pairs: def myfunc(arg1, opts \\ []) do # Function body end We can call the function above like so: iex> myfunc "hello", pizza: true, soda: false which is equivalent to: iex> myfunc("he...

Elixir Language • Functions

Testing Exceptions

Programs throw errors when for instance wrong input is given. Because of this, one needs to make sure that an error is thrown when actual wrong input is given. Because of that we need to check for an exact exception, for this example we will use the following exception: class WrongInputException(Ex...

Python Language • Unit Testing

Extended project definition

Some of the additional attributes are parsed by the npm website like repository, bugs or homepage and shown in the infobox for this packages { "main": "server.js", "repository" : { "type": "git", "url": "git+https:/...

Node.js • package.json

Repeat an action x times

repeat(10) { i -> println("This line will be printed 10 times") println("We are on the ${i + 1}. loop iteration") }

Kotlin • Loops in Kotlin

Break and continue

Break and continue keywords work like they do in other languages. while(true) { if(condition1) { continue // Will immediately start the next iteration, without executing the rest of the loop body } if(condition2) { break // Will exit the loop completely } } ...

Kotlin • Loops in Kotlin

Example showcasing the basic concepts

The following example is an introduction to: Template compilation using underscore Accessing variables in a template Creating a view Rendering a view Showing a view <html> <head> <script src="https://code.jquery.com/jquery-3.1.0.min.js"></script> ...

backbone.js • Getting started with backbone.js

Dispose system resources even when an exception is raised

Higher-order functions can be used to ensure that system resources are disposed, even when a treatment raises an exception. The pattern used by with_output_file allows a clean separation of concerns: the higher-order with_output_file functions takes care of managing the system resources bound to fi...

OCaml • Higher Order Functions

Tutorial by Examples: on

Adding types to a function

Disabling inline expansion

Configuring multiple environments

List a module's functions or macros

Attaching basic events on selections

Installation or Setup

Keyword lists as function parameters

Testing Exceptions

Extended project definition

Repeat an action x times

Break and continue

Example showcasing the basic concepts

Dispose system resources even when an exception is raised

role="application"

role="button"

role="contentinfo"

role="definition"

role="navigation"

role="option"

role="presentation"