Tutorial by Examples: e

NSTextAttachment *attachment = [[NSTextAttachment alloc] init]; attachment.image = [UIImage imageNamed:@"imageName"]; attachment.bounds = CGRectMake(0, 0, 35, 35); NSAttributedString *attachmentString = [NSAttributedString attributedStringWithAttachment:attachment];

In the manifest we have fours dangerous runtime permissions from two groups. <!-- Required to read and write to shredPref file. --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTE...

In this context, using the this pointer isn't entirely necessary, but it will make your code clearer to the reader, by indicating that a given function or variable is a member of the class. An example in this situation: // Example for this pointer #include <iostream> #include <string>...

This is an actual useful strategy to differentiate member data from parameters... Lets take this example : // Dog Class Example #include <iostream> #include <string> using std::cout; using std::endl; /* * @class Dog * @member name * Dog's name * @function bark * ...

PHPUnit has two assertions to check values of class properties: assertAttributeSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') assertAttributeNotSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') These methods will check the value of a object p...

Since Sphinx is available on the Python Package Index, it can be installed using pip: pip install Sphinx or you can also install using easy_install easy_install -U sphinx Then you can check that it has been correctly installed by executing the following command: > sphinx-quickstart --ver...

Variables can be used in string interpolation. This allows you to dynamically generate selectors, properties and values. And the syntax for doing so a variable is #{$variable}. $className: widget; $content: 'a widget'; $prop: content; .#{$className}-class { #{content}: 'This is #{$content}'...

Some CSS properties belong to a namespace, for instance border-right belongs to the border namespace. To write less, we can utilize property nesting, and skip these prefixes, even on multiple levels. If we needed to create a border on the right and left of a class named .borders we could write this...

SELECT EncryptByPassphrase('MyPassPhrase', 'This text will get encrypted') This will also encrypt but then by passphrase instead of asymmetric(certificate) key or by an explicit symmetric key.

inline int add(int x, int y);

Before proceeding, it is recommended to have a brief idea about Adjacency Matrix and BFS Dijkstra's algorithm is known as single-source shortest path algorithm. It is used for finding the shortest paths between nodes in a graph, which may represent, for example, road networks. It was conceived by E...

Detailed instructions on getting acumatica set up or installed.

Graph Theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. Did you know, almost all the problems of planet Earth can be converted into problems of Roads and Cities, and solved? Graph Theory was invented many years ago, even before the in...

SQL Server and SQLite allow to create indexes that contain not only a subset of columns, but also a subset of rows. Consider a constant growing amount of orders with order_state_id equal to finished (2), and a stable amount of orders with order_state_id equal to started (1). If your business make ...

I common problem encounter when scrapping a web is how to enter a userid and password to log into a web site. In this example which I created to track my answers posted here to stack overflow. The overall flow is to login, go to a web page collect information, add it a dataframe and then move to t...

Attributes can be useful for denoting metadata on enums. Getting the value of this can be slow, so it is important to cache results. private static Dictionary<object, object> attributeCache = new Dictionary<object, object>(); public static T GetAttribute<T, V>(this V va...

Xcode 8 will automatically recognize any images you’ve got in an Asset Catalog and offer them up as a suggestion inside of a UIImage initializer. So you could basically declare a new variable and then add an asset name that you have added to your asset catalog. For example let img = dog. img does n...

Small, simple csv files can be built using just a text editor, because a CSV file is simply text. If you have spreadsheet software available these are usually an easy way to open and save CSV files. Reading and writing them, or otherwise processing their contents is done more efficiently using the ...