Tutorial by Examples: t

The most basic object is an int: >>> obj = ctypes.c_int(12) >>> obj c_long(12) Now, obj refers to a chunk of memory containing the value 12. That value can be accessed directly, and even modified: >>> obj.value 12 >>> obj.value = 13 >>> obj c_...

As any good C programmer knows, a single value won't get you that far. What will really get us going are arrays! >>> c_int * 16 <class '__main__.c_long_Array_16'> This is not an actual array, but it's pretty darn close! We created a class that denotes an array of 16 ints. Now al...

In some cases, a C function accepts a function pointer. As avid ctypes users, we would like to use those functions, and even pass python function as arguments. Let's define a function: >>> def max(x, y): return x if x >= y else y Now, that function takes two arguments and r...

By convention elementFormDefault is always set to qualified, but lets look at what it actually does. First with elementFormDefault set to qualified. <?xml version="1.0" encoding="utf-8" ?> <!--Created with Liquid Studio 2017 (https://www.liquid-technologies.com)--&g...

The easiest way to run a local JIRA instance, is to install the SDK and run atlas-run-standalone For further details see Starting a local JIRA test instance Please note that this runs a local test instance and is not meant for production.

One of the simpler ways of implementing an authorization system is using the flask-login extension. The project's website contains a detailed and well-written quickstart, a shorter version of which is available in this example. General idea The extension exposes a set of functions used for: log...

The builder pattern is an object creation software design pattern. Unlike the abstract factory pattern and the factory method pattern whose intention is to enable polymorphism, the intention of the builder pattern is to find a solution to the telescoping constructor anti-pattern. The telescopi...

Consider the following code to copy one file to another: import java.io.*; public class FileCopy { public static void main(String[] args) throws Exception { try (InputStream is = new FileInputStream(args[0]); OutputStream os = new FileOutputStream(args[1])) { ...

The COMPILER system handle let's you look at information regarding a recent compile. Assuming ok-program.p is a program without any errors or warning: COMPILE ok-program.p SAVE NO-ERROR. DEFINE VARIABLE iError AS INTEGER NO-UNDO. MESSAGE "Errors: " COMPILER:ERROR SKIP ...

Any declaration (variable, const, function, class, etc.) can be exported from module to be imported in other module. Typescript offer two export types: named and default. Named export // adams.ts export function hello(name: string){ console.log(`Hello ${name}!`); } export const answerToLi...

Feature: Some terse yet descriptive text of what is desired Textual description of the business value of this feature Business rules that govern the scope of the feature Any additional information that will make the feature easier to understand Background: Given some precon...

Generate a random letter between a and z by using the Next() overload for a given range of numbers, then converting the resulting int to a char Random rnd = new Random(); char randomChar = (char)rnd.Next('a','z'); //'a' and 'z' are interpreted as ints for parameters for Next()

Add this text to appsettings.json { "key1": "value1", "key2": 2, "subsectionKey": { "suboption1": "subvalue1" } } Now you can use this configuration in your app, in the way like this public class Program { sta...

Create class like a class below public class MyOptions { public MyOptions() { // Set default value, if you need it. Key1 = "value1_from_ctor"; } public string Key1 { get; set; } public int Key2 { get; set; } } Then you need to add this code ...

This used the flex layout with the sortable to create a grid of responsive boxes that can be moved around by dragging and dropping. HTML <div id="sortable"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> <div&gt...

This example uses a class on the placeholder to turn it into a line and make it take up no room. HTML <div id="sortable"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> </div> JS $("#sortable&q...

The underlying example is just the one given in the official pyspark documentation. Please click here to reach this example. # the first step involves reading the source text file from HDFS text_file = sc.textFile("hdfs://...") # this step involves the actual computation for reading...

Based on a question. The following snippets Does not cache the expected emission and prevents further calls. Instead it re-subscribes to the realSource for every subscription. var state = 5 var realSource = Rx.Observable.create(observer => { console.log("creating expensive HTTP-based emis...

#include <string.h> #include <gst/gst.h> #include <gst/app/gstappsrc.h> /* * an example application of using appsrc in push mode to create a file. * from buffers we push into the pipeline. */ /* S16LE 10ms frame audio */ #define BUFFER_SIZE 160 /* 300 frames =...

Executable C++ program code is usually produced by a compiler. A compiler is a program that translates code from a programming language into another form which is (more) directly executable for a computer. Using a compiler to translate code is called compilation. C++ inherits the form of its compi...