Operators

is

Supported By

Syntax

expression is expression

Description

The is operator evaluates to true if the given values are equal. Otherwise, it evaluates to false.

If both given values are integers or numbers, the values will be compared numerically. If both given values are dates, the values will be compared chronologically. Otherwise, the values will be compared as strings.

Note

String comparison with the is operator is case-insensitive. For case-sensitive comparison, use the csstrcmp function or the === operator.

Synonyms

equals, is equal to, =, ==

See Also

===, equal