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In computer programming, specifically when using the imperative programming paradigm, an assertion is a predicate (a Boolean-valued function over the state space, usually expressed as a logical proposition using the variables of a program) connected to a point in the program, that always should evaluate to true at that point in code execution.
If-then-else flow diagram A nested if–then–else flow diagram. In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs) are programming language constructs that perform different computations or actions or return different values depending on the value of a Boolean expression, called a condition.
The dangling else is a problem in programming of parser generators in which an optional else clause in an if–then(–else) statement can make nested conditional statements ambiguous. Formally, the reference context-free grammar of the language is ambiguous , meaning there is more than one correct parse tree .
Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})
The Chicken Dance is an example of a line dance adopted by the Mod revival during the 1980s. [18] The music video for the 1990 Billy Ray Cyrus song "Achy Breaky Heart" has been credited for launching line dancing into the mainstream. [2] [19] [20] [21] In the 1990s, the hit Spanish dance song "Macarena" inspired a popular line dance. [22]
In 2007, Silver filed DMCA-based take-down notices to YouTube users who posted videos of people performing the 18-step dance variation. The Electronic Frontier Foundation (EFF) filed suit on behalf of videographer Kyle Machulis against Silver, asking the court to protect Machulis's free speech rights in recording a few steps of the dance in a documentary video posted to the Internet. [6]
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 January 2025. Language for communicating instructions to a machine The source code for a computer program in C. The gray lines are comments that explain the program to humans. When compiled and run, it will give the output "Hello, world!". A programming language is a system of notation for writing ...
Sanding, also known as sand jigging or sand dancing, is a type of dance performed as a series of slides and shuffles on a sand-strewn floor. In some instances, the sand is spread across an entire stage. In other cases, it is kept in a box that the dancer stays in throughout the dance.