Tutorial by Examples: n

#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...

Each scenario tests one behaviour Scenarios are written in a declarative way Avoid incidental details inside the scenario Omit the obvious Avoid conjunctive steps Keep your scenarios short Don’t have to many scenarios in the same feature Use descriptive scenario names Have only one When st...

Detailed instructions on getting sikuli set up or installed.

One more way to use ajax in cakephp. Cakephp provide itself for ajax request. Please see example. $data = $this->Js->get('#id')->serializeForm(array('isForm' => true, 'inline' => true)); //on click send request to controller and displays response data in view $this->Js->get...

When trying to filter some record using multiple value in a selector. First you must use the px:PXMultiSelector in the aspx page instead of the normal px:PXSelector. Then after you must create yourself a graph containing at least three views and a view delegate. you will also need at least a basic ...

Suppose this struct is defined and compiled with a 32 bit compiler: struct test_32 { int a; // 4 byte short b; // 2 byte int c; // 4 byte } str_32; We might expect this struct to occupy only 10 bytes of memory, but by printing sizeof(str_32) we see it uses 12 by...

In Rust the xmpp-addr (docs) crate can be used to manipulate JIDs. To split a JID into its component parts (without validating that those parts are valid), the Jid::split function may be used: let (lp, dp, rp) = Jid::split("[email protected]")?; assert_eq!(lp, Some("feste")); ...

Following example will help to give equal space to an item in GridLayout. ItemOffsetDecoration.java public class ItemOffsetDecoration extends RecyclerView.ItemDecoration { private int mItemOffset; private int spanCount = 2; public ItemOffsetDecoration(int itemOffset) { ...

This example will help to have the Edit text with the icon at the right side. Note: In this just I am using setCompoundDrawablesWithIntrinsicBounds, So if you want to change the icon position you can achieve that using setCompoundDrawablesWithIntrinsicBounds in setIcon. public class MKEditTe...

This method will help to get the Java string from C++ string. jstring getJavaStringFromCPPString(JNIEnv *global_env, const char* cstring) { jstring nullString = global_env->NewStringUTF(NULL); if (!cstring) { return nullString; } jclass strC...

Here we can find some useful method using PackageManager, Below method will help to get the app name using package name private String getAppNameFromPackage(String packageName, Context context) { Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATE...

with the number 100 in cell A1, the results of these calculations =DEC2BIN(A1) =DEC2OCT(A1) =DEC2HEX(A1) =BIN2DEC(A1) =OCT2DEC(A1) =HEX2DEC(A1) is 1100100 144 64 4 64 256 note that the first 3 functions are left justified, as they are strings, and the last 3 are r...

Vim saves all your unsaved edits in a swap file, an extra file that gets deleted once the changes are committed by saving. The name of the swap file is usually the name of the file being edited preceded by a . and with a .swp suffix (you can see it with :sw). So in case your vim process terminates ...

Docs: 1.x -> 2.x upgrade guide, registering an element, shared style modules. <link rel="import" href="bower_components/polymer/polymer-element.html"> <dom-module id="element-name"> <template> <!-- Use one of these style declaration...