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The detailed semantics of "the" ternary operator as well as its syntax differs significantly from language to language. A top level distinction from one language to another is whether the expressions permit side effects (as in most procedural languages) and whether the language provides short-circuit evaluation semantics, whereby only the selected expression is evaluated (most standard ...
In mathematics, a ternary operation is an n-ary operation with n = 3. A ternary operation on a set A takes any given three elements of A and combines them to form a single element of A. In computer science, a ternary operator is an operator that takes three arguments as input and returns one output. [1]
and | are bitwise operators that occur in many programming languages. The major difference is that bitwise operations operate on the individual bits of a binary numeral, whereas conditional operators operate on logical operations. Additionally, expressions before and after a bitwise operator are always evaluated.
The new operator can be used to create an object wrapper for a Boolean primitive. However, the typeof operator does not return boolean for the object wrapper, it returns object. Because all objects evaluate as true, a method such as .valueOf(), or .toString(), must be used to retrieve the wrapped value.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
Some languages have a functional form of an if statement, for instance Lisp's cond. Some languages have an operator form of an if statement, such as C's ternary operator. Perl supplements a C-style if with when and unless. Smalltalk uses ifTrue and ifFalse messages to implement conditionals, rather than any fundamental language construct.
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In a language that supports the Elvis operator, something like this: x = f() ?: g() will set x equal to the result of f() if that result is truthy, and to the result of g() otherwise. It is equivalent to this example, using the conditional ternary operator: x = f() ? f() : g() except that it does not evaluate f() twice if it yields truthy.