Rebol Programming/if

= USAGE: = IF condition then-block /else else-block

= DESCRIPTION: = If condition is TRUE, evaluates the block.

IF is a native value. = ARGUMENTS: =
 * condition -- (Type: any)
 * then-block -- (Type: block)

= REFINEMENTS: =
 * /else -- If not true, evaluate this block
 * else-block -- (Type: block)

= SOURCE CODE = if: native[ "If condition is TRUE, evaluates the block." condition then-block [block!] /else "If not true, evaluate this block" else-block [block!] ]