Tutorial by Examples: r

Here we can create UUID String with in one line. Represents UUID strings, which can be used to uniquely identify types, interfaces, and other items. Swift 3.0 print(UUID().uuidString) It is very useful for identify multiple devices with unique id.

package main import ( "k8s.io/kubernetes/pkg/api" unver "k8s.io/kubernetes/pkg/api/unversioned" "k8s.io/kubernetes/pkg/apis/extensions" "k8s.io/kubernetes/pkg/client/restclient" client "k8s.io/kubernetes/pkg/client/unversioned&...

package main import ( //"k8s.io/kubernetes/pkg/api" "k8s.io/kubernetes/pkg/client/restclient" "log" "os" // unver "k8s.io/kubernetes/pkg/api/unversioned" "k8s.io/kubernetes/pkg/apis/extensions" client &...

package main import ( // "k8s.io/kubernetes/pkg/api" // unver "k8s.io/kubernetes/pkg/api/unversioned" "k8s.io/kubernetes/pkg/apis/extensions" "k8s.io/kubernetes/pkg/client/restclient" client "k8s.io/kubernetes/pkg/client/unv...

Dockerize zookeeper-3.4.6 Create a Dockerfile: ####################################################### # Image: img.reg.3g:15000/zookeeper:3.4.6 ####################################################### FROM img.reg.3g:15000/jdk:1.7.0_67 MAINTAINER [email protected] USER root ENV ZO...

You can use Try..Catch to rollback database operation by placing the rollback statement at the Catch Segment. Try 'Do the database operation... xCmd.CommandText = "INSERT into ...." xCmd.ExecuteNonQuery() objTrans.Commit() ...

Repository interface; public interface IRepository<T> { void Insert(T entity); void Insert(ICollection<T> entities); void Delete(T entity); void Delete(ICollection<T> entity); IQueryable<T> SearchFor(Expression<Func<T, bool>> predicate);...

To play a sound of with a specific tone,we first have to create a sine wave sound.This is done in the following way. final int duration = 10; // duration of sound final int sampleRate = 22050; // Hz (maximum frequency is 7902.13Hz (B8)) final int numSamples = duration * sampleRate; final double ...

Generally most of the exceptions are not that critical, but there are some really serious exceptions that you might not be capable to handle, such as the famous System.StackOverflowException. However, there are others that might get hidden by Catch ex As Exception, such as System.OutOfMemoryExceptio...

To enable rerere run the following command: $ git config --global rerere.enabled true This can be done in a specific repository as well as globally.

#define kPaperSizeA4 CGSizeMake(595.2,841.8) First of all implement UIPrintPageRenderer protocol @interface UIPrintPageRenderer (PDF) - (NSData*) printToPDF; @end @implementation UIPrintPageRenderer (PDF) - (NSData*) printToPDF { NSMutableData *pdfData = [NSMutableData data]; ...

import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; class test_webdriver{ public static void main(String[] args) { WebDriver driver = new FirefoxDriver(); driver.get("http://stackoverflow.com/"); driver.close(); } }...

class EventEmitter extends Subject { constructor(isAsync?: boolean) emit(value?: T) subscribe(generatorOrNext?: any, error?: any, complete?: any) : any }

Objective-C NSMutableAttributedString *mutAttString = @"string goes here"; NSRange range = NSMakeRange(0, mutAttString.length); [mutAttString setAttributes:@{} range:originalRange]; As per Apple Documentation we use, setAttributes and not addAttribute. Swift mutAttString.setAttribu...

Given an 'albums' collection, you can loop through and output each item: {% for album in site.albums %} {{ album.content }} {% endfor %} Any custom front matter variables are also available within the loop. {% for album in site.albums %} {{ album.title }} {{ album.content }} {%...

The jars for CXF JAX-RS are found in Maven: <!-- https://mvnrepository.com/artifact/org.apache.cxf/cxf-rt-rs-client --> <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-rs-client</artifactId> <version>3.1.10</version> ...

The code snippet below shows the various ways you can filter on an array of objects using lodash. let lodash = require('lodash'); var countries = [ {"key": "DE", "name": "Deutschland", "active": false}, {"key": "ZA&qu...

triples = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] triples.each { |(first, second, third)| puts second } # 2 # 5 # 8 triples.map { |(first, *rest)| rest.join(' ') } # => ["2 3", "5 6", "8 9"]

Inserting a row at the bottom of a spreadsheet is easy: var someSheet = SpreadsheetApp.getActiveSpreadsheet().getSheets()[0]; someSheet.appendRow(["Frodo", "Baggins", "Hobbit", "The Shire", 33]); Note this will add the row after the last non-empty row. I...

A thread terminates if it reaches the end of its code block. The best way to terminate a thread early is to convince it to reach the end of its code block. This way, the thread can run cleanup code before dying. This thread runs a loop while the instance variable continue is true. Set this variable...