Search results
Results From The WOW.Com Content Network
Formatting; Collapsing; Conditional; Category. Templates; MOS. Accessibility; This help page is a how-to guide. It explains concepts or processes used by the ...
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.
While not itself a conditional function, it is often used inside of those functions, so it is briefly described here. See Manual:Expr parser function syntax for further details. {{#expr: expression}} Unlike the #if function, all values in the expression evaluated by #expr are assumed to be numerical. It does not work with arbitrary strings.
Conditional (if then) may refer to: Causal conditional, if X then Y, where X is a cause of Y; Conditional probability, the probability of an event A given that another event B; Conditional proof, in logic: a proof that asserts a conditional, and proves that the antecedent leads to the consequent
A conditional sentence is a sentence in a natural language that expresses that one thing is contingent on another, e.g., "If it rains, the picnic will be cancelled." They are so called because the impact of the sentence’s main clause is conditional on a subordinate clause.
Instead, conditional constructs like cond assume that the logical value false is represented by the empty list (), which is defined to be the same as the special atom nil or NIL; whereas any other s-expression is interpreted as true.
Therefore, only conditional assignment to a reference through the ?: operator conveys the semantics of Initializing a variable from only one of two choices based on a predicate appropriately. Furthermore, the conditional operator can yield an lvalue, i.e. a value to which another value can be assigned. Consider the following example:
But, the conditional comment feature adds syntax for a conditional statement that is formatted as a comment. Therefore, some text that is formatted as a comment is actually not a comment. It is markup code. Note that other browsers – that do not support the conditional comment feature – ignore them since they are formatted as comments.