Go to the first, previous, next, last section, table of contents.
[[syntax]] (set! <variable> <expression>)
<Expression> is evaluated, and the resulting value is stored in the location to which <variable> is bound. <Variable> must be bound either in some region enclosing the set! expression or at top level. The result of the set! expression is unspecified.
(define x 2) (+ x 1) => 3 (set! x 4) => unspecified (+ x 1) => 5
Go to the first, previous, next, last section, table of contents.