Tutorial by Examples: ar

// An 8-bit 'byte' value: byte aByte = (byte)0b00100001; // A 16-bit 'short' value: short aShort = (short)0b1010000101000101; // Some 32-bit 'int' values: int anInt1 = 0b10100001010001011010000101000101; int anInt2 = 0b101; int anInt3 = 0B101; // The B can be upper or lower case. // A ...

// Takes a callback and executes it with the read value def readFile(path: String)(callback: Try[String] => Unit): Unit = ??? readFile(path) { _.flatMap { file1 => readFile(path2) { _.foreach { file2 => processFiles(file1, file2) }} }} The function argument to readFile is...

We can have three cases to analyze an algorithm: Worst Case Average Case Best Case #include <stdio.h> // Linearly search x in arr[]. If x is present then return the index, // otherwise return -1 int search(int arr[], int n, int x) { int i; for (i=0; i<n; i...

Not everything in a bindings library will have the same name in C# as it does in Java. In C#, interface names start with "I", but Java has no such convention. When you import a Java library, an interface named SomeInterface will become ISomeInterface. Similarly, Java doesn't have propert...

A std::tuple<T...> can be used to pass multiple values around. For example, it could be used to store a sequence of parameters into some form of a queue. When processing such a tuple its elements need to be turned into function call arguments: #include <array> #include <iostream>...

std::integer_sequence itself is about holding a sequence of integers which can be turned into a parameter pack. Its primary value is the possibility to create "factory" class templates creating these sequences: #include <iostream> #include <initializer_list> #include <uti...

CSS variables cascade in much the same way as other properties, and can be restated safely. You can define variables multiple times and only the definition with the highest specificity will apply to the element selected. Assuming this HTML: <a class="button">Button Green</a>...

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:[NSURL ...

This example shows how to hide a "Date" field from the SharePoint list view using CSR. (function () { function RemoveFields(ctx) { var fieldName = "Date"; // here Date is field or column name to be hide var header = document.querySelectorAll("[d...

CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11) SET(PROJ_NAME "myproject") PROJECT(${PROJ_NAME}) # Configuration types SET(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE) IF(DEFINED CMAKE_BUILD_TYPE AND CMAKE_VERSION VERSION_GREATER "2.8"...

Redirect without query params: RewriteRule ^route$ /new_route_without_query [L,R=301,QSD] Redirect with query params: RewriteCond %{QUERY_STRING} ^$ RewriteRule ^/?route$ %{REQUEST_URI}?query=param1&query2=param2 [NC,L,R=301]

You will be asked to enter your Heroku credentials the first time you run a command; after the first time, your email address and an API token will be saved to ~/.netrc for future use. It’s generally a good idea to login and add your public key immediately after installing the Heroku CLI so that yo...

One example of machine learning algorithms is the Random Forest alogrithm (Breiman, L. (2001). Random Forests. Machine Learning 45(5), p. 5-32). This algorithm is implemented in R according to Breiman's original Fortran implementation in the randomForest package. Random Forest classifier objects ca...

Lets have a look at the native app lifecycle methods for different platforms. Android. //Xamarin.Forms.Platform.Android.FormsApplicationActivity lifecycle methods: protected override void OnCreate(Bundle savedInstanceState); protected override void OnDestroy(); protected override void OnPause()...

The following example shows how to apply custom fonts to a Navigation Bar and includes fixes for some quirky behaviors found in Xcode. One also may apply the custom fonts to any other UIControls such as UILabels, UIButtons, and more by using the attributes inspector after the custom font is added to...

double res[MAX]; int i; #pragma omp parallel { #pragma omp for for (i=0;i< MAX; i++) { res[i] = huge(); } } The for loop will be executed in parallel. huge() is some method which can take too long to get execute. OpenMP supports a shortcut to write the ab...

NgFor provides Some values that can be aliased to local variables index -(variable) position of the current item in the iterable starting at 0 first -(boolean) true if the current item is the first item in the iterable last -(boolean) true if the current item is the last item in the iterable ...

Increment / Decrement A pointer can be incremented or decremented (prefix and postfix). Incrementing a pointer advances the pointer value to the element in the array one element past the currently pointed to element. Decrementing a pointer moves it to the previous element in the array. Pointer ari...

Template as below Scenario Outline: As a homemaker i want to buy and pay for the below product Given I purchase <a product> And I require a carry bag to take things to home When I pay bill using <payment method> to successfully checkout Then I should have a receipt Exam...

Example sheet Code Sub Example() Dim wks As Worksheet Set wks = ThisWorkbook.Worksheets("Sheet1") Dim units As Range Set units = ThisWorkbook.Names("Units").RefersToRange Worksheets("Sheet1").Range("Year_Max").Value =...