Return type: Switch
Returns:       Returns true if the element specified by the element qualifiers is identified by one of the specified names, and false otherwise. Replacing is with isnt will reverse these results.

Syntax

element element-qualifier* (is | isnt) namespace-modifier? (element-name | element-name-list)

An element test that succeeds if the element being tested is identified by one of the specified names.

If no element qualifiers are present, the test applies to the current element.

The test allows the programmer to specify either a single element name or a parenthesized list of element-names, separated by or or "|", instead of a single element name.

Related Syntax element

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