Tutorial by Examples: o

When there's an expression with a pipe the cmd starts two threads on both sides of the pipe and the expression is parsed twice (for each side of the pipe) so carets need to be doubled. On the left side: echo ^^^&|more On the right side: break|echo ^^^&

Mostly you're probably working with these scopes: Variables scope is the scope where all variables are assigned to when nothing else is intentionally declared (like the window scope in JavaScript). Form scope When you send a form to your server, all the form fields which can be identified (by se...

Another heuristic commonly used instead of union by size is the union by rank heuristic Its basic idea is that we don't actually need to store the exact size of the sets, an approximation of the size (in this case: roughly the logarithm of the set's size) suffices to achieve the same speed as union...

While in combination with path compression, union by rank nearly achieves constant time operations on union-find data structures, there is a final trick that allows us to get rid of the rank storage altogether by storing the rank in out-of-bounds entries of the parentarray. It is based on the follow...

gradle.taskGraph.whenReady {taskGraph -> if (taskGraph.hasTask(assembleDebug)) { /* when run debug task */ autoIncrementBuildNumber() } else if (taskGraph.hasTask(assembleRelease)) { /* when run release task */ autoIncrementBuildNumber() } }

/*Wrapping inside a method avoids auto incrementing on every gradle task run. Now it runs only when we build apk*/ ext.autoIncrementBuildNumber = { if (versionPropsFile.canRead()) { def Properties versionProps = new Properties() versionProps.load(new FileInputStream(versio...

def versionPropsFile = file('version.properties') def versionBuild /*Setting default value for versionBuild which is the last incremented value stored in the file */ if (versionPropsFile.canRead()) { def Properties versionProps = new Properties() versionProps.load(new FileInputStream(ve...

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 ...

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...

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 ...