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The null coalescing operator is a binary operator that returns the left operand if it is not null, and the right operand otherwise. It is used in several programming languages, such as C#, PHP, Perl, and Swift, to provide a default value for nullable expressions.
Learn about array, a data type that represents a collection of elements selected by indices that can be computed at run time. Compare array types with other data types, such as record, list, and string, and see how they are implemented and used in different programming languages.
Learn the syntax of the C# programming language, compatible with .NET Framework and Mono. See the rules and examples for identifiers, keywords, literals, variables, constants, and more.
A null pointer is a value used to indicate that a pointer or reference does not refer to a valid object. Learn how null pointers are used, compared, and handled in different programming languages and environments, and what are the consequences of null pointer errors.
Kadane's algorithm is a simple and efficient solution to find the contiguous subarray with the largest sum in a one-dimensional array of numbers. It was devised by Jay Kadane in 1982, based on an earlier algorithm by Michael Shamos, and has applications in genomic sequence analysis and computer vision.
Learn what lazy initialization is and how it is used in computer programming to delay the creation of objects or the calculation of values until they are needed. See examples in ActionScript, C, C# and Java.
An array is a data structure consisting of a collection of elements, each identified by an index or key. Arrays are used for various purposes, such as vectors, matrices, tables, and control flow, and have different indexing methods and implementations.
A list of operators in the C and C++ programming languages, with syntax, prototype examples, and overloading capabilities. Includes arithmetic, comparison, logical, bitwise, assignment, and other operators.