Tutorial by Examples: nd

The first thing you want to do for local development is install ElasticSearch in your machine and test it to see if it is running. It requires Java to be installed. The installation is pretty straightforward: Mac OS X: brew install elasticsearch Ubuntu: sudo apt-get install elasticsearch Then...

Downloading Prerequisites: We provide native 64-bit binaries for Windows 7 and above. A 64-bit version of Windows is required. Download the ZIP archive and unpack it in a directory of your choice. The Windows port of RethinkDB is a recent addition and hasn't received as much tuning as the Linux a...

User defined table functions represented by org.apache.hadoop.hive.ql.udf.generic.GenericUDTF interface. This function allows to output multiple rows and multiple columns for a single input. We have to overwrite below methods : 1.we specify input and output parameters abstract StructObjectInspe...

The Firebase auth system is the source of a users uid, displayName, photoURL, and maybe email. Password based accounts set these persistent values in the auth system via the .updateProfile method. Storing these values in the Realtime Database, rDB, users node poses the issue of stale data. Displa...

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Mapreduce is a programming model to do processing on (very) large amounts of data. Traditional 'HPC' (High Performance Computing) speeds up large calculations on relatively large amounts of data by creating a set of highly connected computers (using things like extremely quick networking, and quick...

class MyClass { private String privateField } def prvtClss = new MyClass(privateField: 'qwerty') println prvtClss.privateField will print us 'qwerty' This issue is known since version 1.1 and there is a bug report on that: http://jira.codehaus.org/browse/GROOVY-1875. It is not reso...

onView(withId(R.id.pay))

onView(withText("Pay")) onView(withText(R.string.pay))

To be able to create a server, you need to have the spigot or the bukkit jar file. Reefer to the versions topic to select your jar First, create a new folder. In that folder, put the spigot/bukkit jar file. Right click in the folder, and choose New > Text Document. Name the new document star...

If you have an Ecto.Queryable, named Post, which has a title and an description. You can fetch the Post with title: "hello" and description : "world" by performing : MyRepo.get_by(Post, [title: "hello", description: "world"]) All of this is possible beca...

/_build /cover /deps erl_crash.dump *.ez /rel

Overloading the disconnect function allows you to handle what to do when a user disconnects. public override Task OnDisconnected(bool stopCalled) { //Your disconnect logic here return base.OnDisconnected(stopCalled); }

The following configuration can be used as a base config for bundling up your project as a library. Notice how the module config contains a list of preLoaders and loaders. // webpack.config.js var path = require('path'); module.exports = { entry: path.join(__dirname, '..', 'src/index.js...

If you have a moment object you can use add and substract to manipulate it or set any property of the time directly moment("2016-01-01").add(1, 'year').format('YYYY-MM-DD') // -> "2017-01-01" Or use .day(), .month(), .year(), .seconds(), .milliseconds() to set those val...

Dependency installation ( https://www.npmjs.com/package/gulp-imagemin ) $ npm install --save-dev gulp-imagemin Usage /* * Your other dependencies. */ var imagemin = require('gulp-imagemin'); /* * `gulp images` - Run lossless compression on all the images. */ gulp.task('images', f...

You can create a custom exception and throw them during the execution of your function. As a general practice you should only throw an exception when your function could not achieve its defined functionality. Private Function OpenDatabase(Byval Server as String, Byval User as String, Byval Pwd as S...

#lang racket (for ([path (in-directory)] #:when (regexp-match? #rx"[.]rkt$" path)) (printf "source file: ~a\n" path)) The #lang line specifies the programming language of this file. #lang racket we are using the baseline, battery-included Racket programming language. O...

public class HomepageTests { private IWebDriver _driver; [SetUp] public void LoadDriver() { _driver = new ChromeDriver(); } [Test] public void Valid_Home_Page_Title() { _driver.Navigate().GoToUrl("Your homeoage url / loc...

Run repair on a particular partition range. nodetool repair -pr Run repair on the whole cluster. nodetool repair Run repair in parallel mode. nodetool repair -par