isNull Method

Class: Primitive

Description

This method returns an indication of whether the value of the primitive is the null value. An optional parameter specifies how to handle a string consisting of two quotes.

Syntax

Primitive.isNull(Boolean isIncludeEmptyQuotes)

Parameters

isincludeEmptyQuotes

An option that indicates whether the string consisting of two quotes ("") is treated as a null value. Valid values include:

1 -- treat as a null value

0 -- do not treat as a null value (default)

Returns

1 if the primitive's value is null.
0 if the primitive's value is not null.

When Became Available

Profile v7.0

Example

type String QUOTES = """"""       // two quotes

 

write QUOTES.isNull(0)            // strict: 0

write QUOTES.isNull(1)            // with isIncEmpQts: 1

write QUOTES.isNull()             // default = strict: 0

 

write "".isNull(0)                // "normal" empty: 1

write "".isNull(1)                // 1, regardless of isIncEmpQt