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case input when Array then puts 'input is an Array!' when Hash then puts 'input is a Hash!' end Ruby also returns a value that can be assigned to a variable, and doesn’t actually require the case to have any parameters (acting a bit like an else if statement):
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 ...
The ELSIF and ELSE parts are optional so it is possible to create simpler IF-THEN or, IF-THEN-ELSE constructs. IF x = 1 THEN sequence_of_statements_1 ; ELSIF x = 2 THEN sequence_of_statements_2 ; ELSIF x = 3 THEN sequence_of_statements_3 ; ELSIF x = 4 THEN sequence_of_statements_4 ; ELSIF x = 5 THEN sequence_of_statements_5 ; ELSE sequence_of ...
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.
A demonstration that the nested IF-THEN-ELSE—the "case statement" (or "switch statement")--is primitive recursive can be found in Kleene 1952:229 [4] at "#F ('mutually-exclusive predicates')". The CASE operator behaves like a logical multiplexer and is simply an extension of the simpler two-case logical operator sometimes called AND-OR-SELECT ...
“If we think in the future that an AI agent will do somebody’s job, then how many digital workers you have is a function of how much compute you have,” Heim says. “If an AI model can’t ...
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 .
Dick Vitale is one of college basketball’s defining and most enduring figures.. After coaching for 16 years, Vitale joined ESPN in 1979, only a few months into the network’s existence, and ...