EXPRESSION (PROGRAMMING)

An 'expression' in a programming language is a combination of values, variables, operators, and functions that are interpreted (''evaluated'') according to the particular rules of precedence and of association for a particular programming language, which computes and then produces (''returns'', in a stateful environment) another value. The expression is said to ''evaluate to'' that value. As in mathematics, the expression ''is'' (or can be said to ''have'') its evaluated value; the expression is a representation of that value.
Expressions may or may not have side effects. Normally, an expression with side effects does not have the property of referential transparency.

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See also

References

See also

★ Statement (programming) (contrast)

★ Boolean expression

★ Expression (mathematics)

★ evaluation strategy

References

★ Expression in The Free On-line Dictionary of Computing, Editor Denis Howe.