ELSEIF

ELSEIF is used in an IF...THEN block statement to offer an alternative condition.

Syntax

IF condition THEN

{code}

⋮

ELSEIF condition2 THEN~

{code}

⋮

ELSE

{alternative-code}

⋮

END IF

Description

• ELSEIF statements require a separate code block line with THEN for each alternative condition.
• There can be more than one ELSE IF statement in a single-line IF statement.
• If there is only one possible alternative condition (such as 0 or NOT 0), use ELSE instead.
• If the comparisons are based on multiple conditions being true, it may require many ELSEIF comparisons. ELSE could help cover some of those conditions.
• You can use SELECT CASE when IF blocks have a long list of alterative ELSEIF conditions.

Relational Operators:

Symbol	Condition	Example Usage
=	Equal	IF a = b THEN
<>	NOT equal	IF a <> b THEN
<	Less than	IF a < b THEN
>	Greater than	IF a > b THEN
<=	Less than or equal	IF a <= b THEN
>=	Greater than or equal	IF a >= b THEN

Example(s)

IF statement using ELSE IF in one statement line.

IF x = 100 THEN COLOR 10: PRINT x ELSE IF x > 100 THEN COLOR 12: PRINT x ELSE PRINT "< 100"

IF statement block

IF x = 100 THEN ' must place ANY code on next line!
  COLOR 10: PRINT x
ELSEIF x > 100 THEN COLOR 12: PRINT x
ELSE : PRINT "< 100"
END IF

See Also

*ELSE, END IF *IF...THEN