Statements
The if
statement allows the conditional evaluation of one or more expressions, which, if it evaluates to true
, will process the block of code within it.
An if
statement, at a minimum, must contain three elements:
- an opening
if
statement - a
then
statement preceding the expression for evaluation - a closing
endif
statement.
Expressions within an if
statement can include the following types:
Example 1
In the following example, the @group
variable will only be set
if the value of @age
is greater than or equal to 18:
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Example 2
In the following example, if the value of @age
is greater than or equal to 18, then the @group
variable will only be set
to adult
, otherwise it will be set to child
.
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Example 3
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