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In this context, using the this pointer isn't entirely necessary, but it will make your code clearer to the reader, by indicating that a given function or variable is a member of the class. An example in this situation: // Example for this pointer #include <iostream> #include <string>...

This is an actual useful strategy to differentiate member data from parameters... Lets take this example : // Dog Class Example #include <iostream> #include <string> using std::cout; using std::endl; /* * @class Dog * @member name * Dog's name * @function bark * ...

PHPUnit has two assertions to check values of class properties: assertAttributeSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') assertAttributeNotSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') These methods will check the value of a object p...

Graph Theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. Did you know, almost all the problems of planet Earth can be converted into problems of Roads and Cities, and solved? Graph Theory was invented many years ago, even before the in...

Consider the dataframes left and right left = pd.DataFrame([['a', 1], ['b', 2]], list('XY'), list('AB')) left A B X a 1 Y b 2 right = pd.DataFrame([['a', 3], ['b', 4]], list('XY'), list('AC')) right A C X a 3 Y b 4 join Think of join as wanting to combine to dat...

extern crate gtk; use gtk::prelude::*; use gtk::{Window, WindowType, Label, Entry, Box as GtkBox, Orientation}; fn main() { if gtk::init().is_err() { println!("Failed to initialize GTK."); return; } let window = Window::new(WindowType::Toplevel); ...

From Odata.org OData (Open Data Protocol) is an OASIS standard that defines the best practice for building and consuming RESTful APIs. OData helps you focus on your business logic while building RESTful APIs without having to worry about the approaches to define request and response headers, ...

A common approach to get the top most UIViewController is to get the RootViewController of your active UIWindow. I wrote an extension for this: extension UIApplication { func topViewController(_ base: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController ...

Before reading this example, it is required to have a brief idea on edge-relaxation. You can learn it from here Bellman-Ford Algorithm is computes the shortest paths from a single source vertex to all of the other vertices in a weighted digraph. Even though it is slower than Dijkstra's Algorithm, i...

In case of problems, enable the internal logger <nlog internalLogFile="c:\log.txt" internalLogLevel="Trace"> <targets> <!-- target configuration here --> </targets> <rules> <!-- log routing rules --> </rules&gt...

In case of problems, enable the internal logger. C# example: // set internal log level InternalLogger.LogLevel = LogLevel.Trace; // enable one of the targets: file, console, logwriter: // enable internal logging to a file (absolute or relative path. Don't use layout renderers) InternalL...

To understand this example, it is recommended to have a brief idea on Bellman-Ford single source shortest path algorithm which can be found here In Bellman-Ford algorithm, to find out the shortest path, we need to relax all the edges of the graph. This process is repeated at most (V-1) times, where...

After the record gets stored in the database, we want to inspect what was changed on the record. We'll do this inspection by comparing values between the old and new record instances. // 1.0, Revealing Module pattern var myNamespace = myNamespace || {}; myNamespace.example = (function () { ...

// 1.0 // Revealing Module pattern, structures 1.0 similar to 2.0 var myNamespace = myNamespace || {}; myNamespace.example = (function () { /** @appliedtorecord employee */ var exports = {}; function beforeLoad(type, form, request) { showBonusEligibility(form); ...

// 1.0 // Utilize the type argument and raw Strings to filter your // execution by the action function beforeLoad(type, form, request) { // Don't do anything on APPROVE // Note that `type` is an Object, so we must use ==, not === if (type == "approve") { return...

In SuiteScript 1.0, we retrieve the current execution context using nlapiGetContext().getExecutionContext(), then we compare the result to the appropriate raw Strings. // 1.0 in Revealing Module pattern var myNamespace = myNamespace || {}; myNamespace.example = (function () { var exports =...

public class MyClass { public void foo() { Logger logger = Bukkit.getLogger(); logger.info("A log message"); logger.log(Level.INFO, "Another message"); logger.fine("A fine message"); // logging an exception try { ...

Overview The transpose function is one of Bosun's more powerful functions, but it also takes effort to understand. It is powerful because it lets us alert at different levels than the tag structure of the underlying data. Transpose changes the scope of your alert. This lets you scope things into l...

Breadth-first-search (BFS) is an algorithm for traversing or searching tree or graph data structures. It starts at the tree root (or some arbitrary node of a graph, sometimes referred to as a 'search key') and explores the neighbor nodes first, before moving to the next level neighbors. BFS was inve...

const correctness is the practice of designing code so that only code that needs to modify an instance is able to modify an instance (i.e. has write access), and conversely, that any code that doesn't need to modify an instance is unable to do so (i.e. only has read access). This prevents the insta...