Tutorial by Examples: u

You can use using in order to set an alias for a namespace or type. More detail can be found in here. Syntax: using <identifier> = <namespace-or-type-name>; Example: using NewType = Dictionary<string, Dictionary<string,int>>; NewType multiDictionary = new NewType(); /...

Directive code angular.module('myModule', []) .directive('myDirective', function() { return { template: '<div>{{greeting}} {{name}}!</div>', scope: { name: '=', greeting: '@' } }; }); The test describe('myDirective', function() ...

In HBase, you can use 4 types of operations Get : retrieves a row Put : inserts one or more row(s) Delete : delete a row Scan : retrieves several rows If you simply want to retrieve a row, given its row_key you can use the Get object: Get get = new Get(Bytes.toBytes("my_row_key")...

Basically, the Scan object retrieves all the rows from the table, but what if you want to retrieve only the rows where the value of a given column is equal to something ? Let me introduce you the Filters, they work like the WHERE in SQL. Before starting using the filters, if you know how your row_k...

There are two ways to define an anonymous function: the full syntax and a shorthand. Full Anonymous Function Syntax (fn [x y] (+ x y)) This expression evaluates to a function. Any syntax you can use with a function defined with defn (&, argument destructuring, etc.), you can also do with wi...

(defn print-some-items [[a b :as xs]] (println a) (println b) (println xs)) (print-some-items [2 3]) This example prints the output 2 3 [2 3] The argument is destructured and the items 2 and 3 are assigned to the symbols a and b. The original argument, the entire vector [2 ...

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Retrieve System DateTime VBA supports 3 built-in functions to retrieve the date and/or time from the system's clock. FunctionReturn TypeReturn ValueNowDateReturns the current date and timeDateDateReturns the date portion of the current date and timeTimeDateReturns the time portion of the current d...

These functions take a Variant that can be cast to a Date as a parameter and return an Integer representing a portion of a date or time. If the parameter can not be cast to a Date, it will result in a run-time error 13: Type mismatch. FunctionDescriptionReturned valueYear()Returns the year portion ...

DateDiff() DateDiff() returns a Long representing the number of time intervals between two specified dates. Syntax DateDiff ( interval, date1, date2 [, firstdayofweek] [, firstweekofyear] ) interval can be any of the intervals defined in the DatePart() function date1 and date2 are the two ...

How To Install ANTLR in Eclipse (Last tested on Indigo and ANTLR IDE 2.1.2) Install Eclipse. Download ANTLR complete binaries jar that includes ANTLR v2. Extract to a temp directory. Copy the antlr-n.n folder to an appropriate permanent location, for example the same folder that Eclipse is in...

Server Syntax var io = require('socket.io')(80); io.on('connection', function (mysocket) { //custom event called `private message` mysocket.on('private message', function (from, msg) { console.log('I received a private message by ', from, ' saying ', msg); }); //internal `di...

Specifies custom foreign key name if a foreign key not following EF's convention is desired. public class Person { public int IdAddress { get; set; } [ForeignKey(nameof(IdAddress))] public virtual Address HomeAddress { get; set; } } This can also be used when you have multipl...

You want to convert all elements in an array to some other form. For example, you have theUsers = [ {id: 1, username: 'john'} {id: 2, username: 'lexy'} {id: 3, username: 'pete'} ] and you want to have an array of usernames only, i.e. ['john', 'lexy', 'pete'] Method 1 - using .map ...

theUsers = [ {id: 1, username: 'john'} {id: 2, username: 'lexy'} {id: 3, username: 'pete'} ] To retain only users whose id is greather than 2, use the following: [{id: 3, username: 'pete'}] Method 1 - using .filter filteredUsers = theUsers.filter (user) -> user.id >= 2 Met...

The text displayed in a button can be customized, by creating a ButtonType instance yourself: ButtonType answer = new ButtonType("42"); ButtonType somethingElse = new ButtonType("54"); Alert alert = new Alert(Alert.AlertType.NONE, "What do you get when you multiply six ...

/// <summary> /// Read configuration values from app.config and convert to specified types /// </summary> public static class ConfigurationReader { /// <summary> /// Get value from AppSettings by key, convert to Type of default value or typ...

root: build.gradle buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle-experimental:0.8.0-alpha4' } } allprojects { repositories { jcenter() } } app: build.gradle apply plugin: 'com.andro...

You can wrap values into actions and pipe the result of one computation into another: return :: Monad m => a -> m a (>>=) :: Monad m => m a -> (a -> m b) -> m b However, the definition of a Monad doesn’t guarantee the existence of a function of type Monad m => m a -&...

person = name: "Duder von Broheim" age: 27 address: "123 Fake St" phoneNumber: "867-5309" {name, age, address, phoneNumber} = person