Tutorial by Examples: i

A bracket is considered to be any one of the following characters: (, ), {, }, [, or ]. Two brackets are considered to be a matched pair if the an opening bracket (i.e., (, [, or {) occurs to the left of a closing bracket (i.e., ), ], or }) of the exact same type. There are three types of matched p...

Let's create a new project, I'm choosing Single View Application for better demonstration Drag a page view controller to the storyboard, there are 2 things you should change after that: Set the page view controller as initial view controller Change the transition style to scroll ...

<cfcomponent displayname="myAPI" output="false"> <cffunction name="init" access="public" output="no"> <!--- do some basic stuff ---> <cfreturn this> </cffunction> <cffunction name=&q...

<cfscript> api_request = GetHttpRequestData(); api = createObject("component","myAPI").init(); </cfscript> <cfif api_request.method is 'GET'> <cfoutput>#api.welcome()#</cfoutput> <cfelseif api_request.method is 'POST'> ...

Components and functions variables this local arguments Custom tags attributes thisTag caller Global Scopes Server Application Session Request Scopes request variables form url cgi

std::boolalpha and std::noboolalpha - switch between textual and numeric representation of booleans. std::cout << std::boolalpha << 1; // Output: true std::cout << std::noboolalpha << false; // Output: 0 bool boolValue; std::cin >> std::boolalpha >> bool...

std::ends - inserts a null character '\0' to output stream. More formally this manipulator's declaration looks like template <class charT, class traits> std::basic_ostream<charT, traits>& ends(std::basic_ostream<charT, traits>& os); and this manipulator places charact...

std::ws - consumes leading whitespaces in input stream. It different from std::skipws. #include <sstream> ... std::string str; std::istringstream(" \v\n\r\t Wow!There is no whitespaces!") >> std::ws >> str; std::cout << str; // Output: Wow!There is n...

Getting all serial ports information from Windows is often necessary, you may want to give the user a choice of ports to open, or check if your device is connected. In addition, some ports just cannot be opened using a "COMx" string and need to be opened using a device name. Some older v...

Detailed instructions on getting wsdl set up or installed.

As the powershell is installed by default on every windows system from 7/2008 and above it can be used for more complex calculations: @echo off set "expression=(2+3)*10/1000" for /f %%# in ('"powershell %expression%"') do set result=%%# echo %result% Mind the additional do...

WSH/JScript is installed on every windows system since NT so using it for more complex calculations makes it pretty portable. JScript is easier for combining it with batch file : @if (@codesection==@batch) @then @echo off set "expression=2*(2+3)/1000" for /f %%# in ('cscript //nologo...

Here can be found the most comprehensive math library that emulates pen and paper calculations and allows working with bigger numbers. Here are another examples of pen and paper emulations: ADD , Comparison , Multiply Some math functions implementations can be found here.

#include <opencv2/opencv.hpp> #include using namespace cv; using namespace std; int main(int argc, char** argv) { Mat image; image = imread("C:\Users\Development\Documents\Visual Studio 2013\Projects\ImageIn.bmp", CV_LOAD_IMAGE_GRAYSCALE); // Read the file if (!image.data)...

Arrow function is the new way of defining a function in ECMAScript 6. // traditional way of declaring and defining function var sum = function(a,b) { return a+b; } // Arrow Function let sum = (a, b)=> a+b; //Function defination using multiple lines let checkIfEven = (a) => { ...

this in function refers to instance object used to call that function but this in arrow function is equal to this of function in which arrow function is defined. Let's understand using diagram Understanding using examples. var normalFn = function(){ console.log(this) // refers to global/windo...

File structure / -src/ awesome.service.ts another-awesome.service.ts awesome.module.ts -index.ts -tsconfig.json -package.json -rollup.config.js -.npmignore Service and module Place your awesome work here. src/awesome.service.ts: export ...

DynamoDB is a Distributed NoSQL database, based on key-value architecture, fully managed by Amazon Web Services. It was designed to provide scalability, redundancy and failover in predictable performance.

The same URl for different http methods acts differently. Below is a table depicting the same. HTTP VERBURLDESCRIPTIONGET/api/studentsReturns all studentsGET/api/students/5Returns details of Student Id =5POST/api/studentsAdd a new studentPUT/api/students/5Update student with Id=5DELETE/api/students...

<?php // if device exists, update timestamp $stmt = $mysqli->prepare("UPDATE new_devices SET nd_timestamp=? WHERE nd_deviceid=?"); $stmt->bind_param('ss', $now, $device); $stmt->execute(); //echo "Affected Rows: ".$stmt->affected_rows; // T...