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Iterators are a powerful language feature in Rust, described by the Iterator trait. Iterators allow you to perform many operations on collection-like types, e.g. Vec<T>, and they are easily composable.

In SQL, SELECT statements return sets of results from data collections like tables or views. SELECT statements can be used with various other clauses like WHERE, GROUP BY, or ORDER BY to further refine the desired results.

Crash Reporting creates detailed reports of the errors in your app. Errors are grouped into clusters of similar stack traces and triaged by the severity of impact on your users. In addition to automatic reports, you can log custom events to help capture the steps leading up to a crash. Crash Rep...

Understanding accessibility is a process of relating four main categories of abilities to software development. These broad categories are: visual hearing mobility cognitive For each category, the needs of users needs to be considered. It must also be understood that every person has a ra...

If models are correctly related you can easily load related data using EntityFramework. You have three options to chose from: lazy loading, eager loading and explicit loading. Models used in examples: public class Company { public int Id { get; set; } public string FullName { get; set...

GPU computing requires a 'platform' which can connect to and utilize the hardware. The two primary low-level languages that accomplish this are CUDA and OpenCL. The former requires installation of the proprietary NVIDIA CUDA Toolkit and is only applicable on NVIDIA GPUs. The latter is both comp...

Transactions are protective blocks where SQL statements are only permanent if they can all succeed as one atomic action. The classic example is a transfer between two accounts where you can only have a deposit if the withdrawal succeeded and vice versa. Transactions enforce the integrity of the da...

infix [integer] ops infixl [integer] ops infixr [integer] ops Declaration componentMeaninginfixrthe operator is right-associativeinfixlthe operator is left-associativeinfixthe operator is non-associativeoptional digitbinding precedence of the operator (range 0...9, default 9)op1, ... , opn...

This example uses a Search Cursor from the Data Access (da) module of ArcPy. Do not confuse arcpy.da.SearchCursor syntax with the earlier and slower arcpy.SearchCursor(). The Data Access module (arcpy.da) has only been available since ArcGIS 10.1 for Desktop.

CTFE is a mechanism which allows the compiler to execute functions at compile time. There is no special set of the D language necessary to use this feature - whenever a function just depends on compile time known values the D compiler might decide to interpret it during compilation. You can also ...

class Foo { } // inherits from Object class Bar: Foo { } // Bar is a Foo too Foo f = new Foo(); // instantiate new objects on the heap See the specification, browse a book chapter on classes, inheritance and play interactively.