Tutorial by Examples: l

Find f(n): nth Fibonacci number. The problem is quite easy when n is relatively small. We can use simple recursion, f(n) = f(n-1) + f(n-2), or we can use dynamic programming approach to avoid the calculation of same function over and over again. But what will you do if the problem says, Given 0 <...

Sometimes we want to use a where query on a a collection of records returned which is not ActiveRecord::Relation.Hence we get the above error as Where clause is know to ActiveRecord and not to Array. There is a precise solution for this by using Joins. EXAMPLE:- Suppose i need to find all user ...

Important: Be sure to set up the server-side implementation as per the instructions here, otherwise uploads will not work. To get started, create a new HTML document. Download the script as per the "Installation" example, and include it in your head tag like so (remebering to replace the ...

Consider the following Java classes: class Foo { private Bar bar; public void foo() { bar.baz(); } } As can be seen, the class Foo needs to call the method baz on an instance of another class Bar for its method foo to work successfully. Bar is said to be a dependency for Foo sin...

The same examples as shown above with XML configuration can be re-written with Java configuration as follows. Constructor injection @Configuration class AppConfig { @Bean public Bar bar() { return new Bar(); } @Bean public Foo foo() { return new Foo(bar()); } } Property in...

Dependencies can be autowired when using the component scan feature of the Spring framework. For autowiring to work, the following XML configuration must be made: <context:annotation-config/> <context:component-scan base-package="[base package]"/> where, base-package is th...

Calls to the Metadata API are with HTTP Get: Using Public API Key GET https://www.googleapis.com/analytics/v3/metadata/ga/columns?key={YOUR_API_KEY} Using Access token from either Oauth2 or Service account authentication GET https://www.googleapis.com/analytics/v3/metadata/ga/columns?acces...

uses the Java Client library /** * 1. Execute a Metadata Request * An application can request columns data by calling the list method on the Analytics service object. * The method requires an reportType parameter that specifies the column data to retrieve. * For example, the following code ...

Uses the PHP client library /** * 1. Execute a Metadata Request * An application can request columns data by calling the list method on the Analytics service object. * The method requires an reportType parameter that specifies the column data to retrieve. * For example, the following code r...

Uses the Python client library # 1. Execute a Metadata Request # An application can request columns data by calling the list method on the Analytics service object. # The method requires an reportType parameter that specifies the column data to retrieve. # For example, the following code request...

Uses the .Net Client library PM> Install-Package Google.Apis.Analytics.v3 var metadataService = new AnalyticsMetaDataService(new BaseClientService.Initializer() { ApiKey = {Public API KEY}, ApplicationName = "Metadata api", ...

Go through the steps: Add 'NSAppleMusicUsageDescription' to your Info.plist for the privacy authority. Make sure your music is available in your iPhone. It will not work in the simulator. iOS 10.0.1 import UIKit import AVFoundation import MediaPlayer class ViewController: UIViewControll...

A simple AutoIt script showing some of the basic features of the language. Note that semicolons introduce comments Save this as "HelloWorld.au3" ; Include constants. In this case, for the MsgBox() function #include <MsgBoxConstants.au3> ; Define and initialize the title of a ...

Core Plot provides a podspec, so you can use cocoapods as your library manager which should make installing and updating much simpler Install cocoapods on your system In the project directory add a text file to your project called Podfile by typing pod init in your project directory In the Podfil...

Private Sub Get_Last_Used_Row_Index() Dim wS As Worksheet Set wS = ThisWorkbook.Sheets("Sheet1") Debug.Print LastRow_1(wS) Debug.Print LastRow_0(wS) End Sub You can choose between 2 options, regarding if you want to know if there is no data in the worksheet :...

Data Visualization is an art of presenting the data in a manner that even a non-analyst can understand it. A perfect blend of aesthetic elements like colors, dimensions, labels can create visual masterpieces, hence revealing surprising business insights which in turn helps businesses to make informe...

POST https://analyticsreporting.googleapis.com/v4/reports:batchGet?access_token={Access token from auth request} { "reportRequests":[ { "viewId":"XXXX", "dateRanges":[ { "startDate":"2015-06-15", &q...

Processing provides method rect() to draw a rectangle. This code draws a white 50 X 50 rectangle on black background. void setup() { size(500, 500); background(0); fill(255); noStroke(); } void draw() { rect(225, 225, 50, 50); } The signature of method rect() is thi...

Uses the PHP client library /** * 1.Create and Execute a Real Time Report * An application can request real-time data by calling the get method on the Analytics service object. * The method requires an ids parameter which specifies from which view (profile) to retrieve data. * For example, ...

You can do a multiline doctest by using '...>' for the lines following the first iex> Foo.Bar.somethingConditional("baz") ...> |> case do ...> {:ok, _} -> true ...> {:error, _} -> false ...> end true