@if Statement

Conditionally executes a group of statements, depending on the value of an expression.

@if (
   condition1
)
   text1
[@elif (
   condition2
)
   text2]
[@else
   text3]
@end 

Arguments

condition1, condition2

Optional. An expression that can be coerced into a Boolean expression.

text1

Optional. Text to be parsed if condition1 is true.

text2

Optional. Text to be parsed if condition1 is false and condition2 is true.

text3

Optional. Text to be parsed if both condition1 and condition2 are false.

Remarks

When you write an @if statement, you do not have to place each clause on a separate line. You can use multiple @elif clauses. However, all @elif clauses must come before an @else clause.

You commonly use the @if statement to determine which text among several options should be used for text output. For example:

alert(@if (@_win32) "using Windows NT or Windows 95" @else "using Windows 3.1" @end)

Requirements

Version 3

See Also

Conditional Compilation | Conditional Compilation Variables | @cc_on Statement | @set Statement