- Assignment (computer science) - Wikipedia
In computer programming, an assignment statement sets and or re-sets the value stored in the storage location (s) denoted by a variable name; in other words, it copies a value into the variable In most imperative programming languages, the assignment statement (or expression) is a fundamental construct Today, the most commonly used notation for this operation is x = expr (originally
- Conditional (computer programming) - Wikipedia
If-then-else flow diagram A nested if–then–else flow diagram In computer programming, a conditional statement directs program control flow based on the value of a condition; a Boolean expression A conditional expression evaluates to a value without the side-effect of changing control flow Many programming languages (such as C) have distinct conditional statements and expressions In pure
- Python syntax and semantics - Wikipedia
Python syntax and semantics A snippet of Python code demonstrating binary search The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers) The Python language has many similarities to Perl, C, and Java
- Null coalescing operator - Wikipedia
The null coalescing operator is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, such as (in alphabetical order): C# [1] since version 2 0, [2] Dart [3] since version 1 12 0, [4] PHP since version 7 0 0, [5] Perl since version 5 10 as logical defined-or, [6] PowerShell since 7 0 0, [7] and Swift [8] as nil-coalescing operator It
- Value type and reference type - Wikipedia
Objects, in the sense of object-oriented programming, belong to reference types Assigning to a variable of reference type simply copies the reference, whereas assigning to a variable of value type copies the value This applies to all kinds of variables, including local variables, fields of objects, and array elements
- Relational operator - Wikipedia
In computer science, a relational operator is a programming language construct or operator that defines syntactically a relationship between two entities These include numerical equality (e g , 5 = 5) and inequalities (e g , 4 ≥ 3) In programming languages that include a distinct boolean data type in their type system, like Pascal, Ada, Python or Java, these operators usually evaluate to
- Data type - Wikipedia
The standard type hierarchy of Python 3 In computer science and computer programming, a data type (or simply type) is a collection or grouping of data values, usually specified by a set of possible values, a set of allowed operations on these values, and or a representation of these values as machine types [1] A data type specification in a program constrains the possible values that an
- Assignment problem - Wikipedia
Assignment problem Worked example of assigning tasks to an unequal number of workers using the Hungarian method The assignment problem is a fundamental combinatorial optimization problem In its most general form, the problem is as follows: The problem instance has a number of agents and a number of tasks
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