Tutorial by Examples: d

Cast your random floating-point number as an int. Input: my $range = 10; # create random integer as low as 0 and as high as 9 my $random = int(rand($range)); # max value is up to but not equal to $range print $random . "\n"; Output: A random integer, like... 0 See also t...

Using the Constructor A ReadOnlyCollection is created by passing an existing IList object into the constructor: var groceryList = new List<string> { "Apple", "Banana" }; var readOnlyGroceryList = new ReadOnlyCollection<string>(groceryList); Using LINQ Additiona...

A ReadOnlyCollection cannot be edited directly. Instead, the source collection is updated and the ReadOnlyCollection will reflect these changes. This is the key feature of the ReadOnlyCollection. var groceryList = new List<string> { "Apple", "Banana" }; var readOnlyGroc...

If the source collection is of a type that is not immutable, elements accessed through a ReadOnlyCollection can be modified. public class Item { public string Name { get; set; } public decimal Price { get; set; } } public static void FillOrder() { // An order is generated ...

Insert the analytics function within index.js function analytics(){ (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a...

There’s no API that can break the locked lease of blob storage in Microsoft Azure . This code snippet demonstrates break the locked lease of blob storage in Microsoft Azure (PowerShell). $key = (Get-AzureRmStorageAccountKey -ResourceGroupName $selectedStorageAccount.ResourceGroupName -name $select...

NSString *emailRegex = @"[A-Z0-9a-z]([A-Z0-9a-z._-]{0,64})+[A-Z0-9a-z]+@[A-Z0-9a-z]+([A-Za-z0-9.-]{0,64})+([A-Z0-9a-z])+\\.[A-Za-z]{2,4}"; NSString *firstNameRegex = @"[0-9A-Za-z\"'-]{2,32}$"; NSString *firstNameRegex = @"[ 0-9A-Za-z]{2,32}$"; NSString *lastNa...

A modern Fortran example which includes error checking and a function to get a new unit number for the file. module functions contains function get_new_fileunit() result (f) implicit none logical :: op integer :: f f = 1 do ...

A linked list is either: the empty list, represented by None, or a node that contains a cargo object and a reference to a linked list. #! /usr/bin/env python class Node: def __init__(self, cargo=None, next=None): self.car = cargo self.cdr = next d...

The order of execution of parameters is undefined in C programming. Here it may execute from left to right or from right to left. The order depends on the implementation. #include <stdio.h> void function(int a, int b) { printf("%d %d\n", a, b); } int main(void) { ...

// main.cpp : Defines the entry point for the console application. // #include "opencv2/highgui/highgui.hpp" #include <iostream> using namespace cv; using namespace std; int main(int argc, const char** argv) { Mat img = imread("lena30.jpg", CV_LOAD_IMAGE...

Big data involves the data produced by different devices and applications. Given below are some of the fields that come under the umbrella of Big Data. Black Box Data : It is a component of helicopter, airplanes, and jets, etc. It captures voices of the flight crew, recordings of microphones an...

With the below commands, user's default search_path can be set. Check search path before set default schema. postgres=# \c postgres user1 You are now connected to database "postgres" as user "user1". postgres=> show search_path; search_path ---------------- &q...

By default, when data is imported to the PowerBI Desktop, each table or query stores data source details separately, even if they use the same data source. This makes it tedious, for example, to change the source database of an entire PowerBI report - which requires changing each query source param...

The MultiBinding allows binding multiple values to the same property. In the following example multiple values are bound to the Text property of a Textbox and formatted using the StringFormat property. <TextBlock> <TextBlock.Text> <MultiBinding StringFormat="{}{0}...

For example, we need to create two visualisations, "Before" and "After", and use dynamic filter for the date of the split. Let's say our query is called table. Add an additional date table with possible dates of the split. Add a slicer control with the table added ...

Please download example at: Hello World Project Open project HelloWorld.sqlproj in Visual Studio From the Build menu select Publish HelloWorld... The project will now build and bring up a dialog window Edit the Target database connection Click Publish A pane titled Data Tools Operations shou...

Normally, we opt this approach if we want complete encapsulation and don't want to make our methods public. Ascx <div style="width: 100%;"> <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click"></asp:butto...

void parallelAddition (unsigned N, const double *A, const double *B, double *C) { unsigned i; #pragma omp parallel for shared (A,B,C,N) private(i) schedule(static) for (i = 0; i < N; ++i) { C[i] = A[i] + B[i]; } } This example adds two vector (A and B into...

#include <omp.h> #include <stdio.h> int main (void) { int t = (0 == 0); // true value int f = (1 == 0); // false value #pragma omp parallel if (f) { printf ("FALSE: I am thread %d\n", omp_get_thread_num()); } #pragma omp parallel if (t) { printf (&quo...