Tutorial by Examples: io

Objective-C Import the following to your ViewController #import <CoreImage/CoreImage.h> #import <CoreImage/CoreImage.h> #import <QuartzCore/QuartzCore.h> Call the function [self faceDetector]; Function definition: -(void)faceDetector { // Load the picture for face...

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...

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...

Advanced functions behave the in the same way as cmdlets. The PowerShell ISE includes two skeletons of advanced functions. Access these via the menu, edit, code snippets, or by Ctrl+J. (As of PS 3.0, later versions may differ) Key things that advanced functions include are, built-in, customiz...

For example: You are going to migrate an existing column from non-required to required. In this case you might need to fill some default values in your migration for rows where the altered fields are actually NULL. In case the default value is simple (e.g. "0") you might use a default or d...

Pigeonhole Sort is a sorting algorithm that is suitable for sorting lists of elements where the number of elements (n) and the number of possible key values (N) are approximately the same. It requires O(n + Range) time where n is number of elements in input array and ‘Range’ is number of possible va...

Radix Sort is lower bound comparison based algorithm. It is a non-comparative integer sorting algorithm that sorts data with integer keys by grouping keys by individual digits which share some significant position and value. Radix sort is a linear time sorting algorithm that sort in O(n+k) time whe...

DBCC commands enable user to validate state of database. ALTER TABLE Table1 WITH NOCHECK ADD CONSTRAINT chkTab1 CHECK (Col1 > 100); GO DBCC CHECKCONSTRAINTS(Table1); --OR DBCC CHECKCONSTRAINTS ('Table1.chkTable1'); Check constraint is added with nocheck options, so it will not be ...

DBCC commands can show information about database objects. DBCC PROCCACHE Displays information in a table format about the procedure cache. DBCC OUTPUTBUFFER ( session_id [ , request_id ]) Returns the current output buffer in hexadecimal and ASCII format for the specified session_id (and o...

Git config allows you to customize how git works. It is commonly used to set your name and email or favorite editor or how merges should be done. To see the current configuration. $ git config --list ... core.editor=vim credential.helper=osxkeychain ... To edit the config: $ git config &lt...

Inheritance is one of the main concepts in Object Oriented Programming (OOP). Using inheritance, we can model a problem properly and we can reduce the number of lines we have to write. Let's see inheritance using a popular example. Consider you have to model animal kingdom (Simplified animal kingdo...

Polymorphism is one of the basic concepts in OOP (Object Oriented Programming). Main idea of the polymorphism is that an object have the ability to take on different forms. To achieve that (polymorphism), we have two main approaches. Method overloading Occures when there are two or more meth...

Abstraction is one of the main concepts in Object Oriented Programming (OOP). This is the process of hiding the implementation details for the outsiders while showing only essential details. In another words, Abstraction is a technique to arrange the complexity of a program. There are two basic typ...

Download the files from our.umbraco.org/download and unzip them in a folder. Set up web server hosting the folder you chose. Although IIS is a requirement for production sites, it runs fine for development in IIS Express. Set up file permissions for the folder. For development server it is okey ...

You can customize parsing rules using different options in WITH clause: BULK INSERT People FROM 'f:\orders\people.csv' WITH ( CODEPAGE = '65001', FIELDTERMINATOR =',', ROWTERMINATOR ='\n' ); In this example, CODEPAGE specifies that a source file in UTF-8 f...

All roles granted to user. select * from dba_role_privs where grantee= :username Privileges granted to user: system privileges select * from dba_sys_privs where grantee = :username object grants select * from dba_tab_privs where grantee = :username Permissions grante...

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Detailed instructions on getting audio set up or installed.

The following query will return informationa about qeries, their plans and average statistics regarding their duration, CPU time, physical and logical io reads. SELECT Txt.query_text_id, Txt.query_sql_text, Pl.plan_id, avg_duration, avg_cpu_time, avg_physical_io_reads, avg_logica...

While declaring a function in the $rootscope has it's advantages, we can also declare a $scope function any part of the code that is injected by the $scope service. Controller, for instance. Controller myApp.controller('myController', ['$scope', function($scope){ $scope.myFunction = function ...