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Logic Functions

Is Operator

Description 1 of 4 (test that a value equals another value):
Test that a first value is equal to a second value.
Synonym:
=
Returns:
Boolean
Parameters:
Parameter
Data Type
Description
1
Any
The first value
2
Any
The second value
Examples:
Expression
Result
1 Is 1
true
0 = 1
false
"a" = "b"
false
Description 2 of 4 (test that a list contains a value):
Test that a value is a member of a list of values.
This is equivalent to
Member( value, list )
.
Returns:
Boolean
Parameters:
Parameter
Data Type
Description
1
Any
The value.
2
Any*
The list of values.
Examples:
Expression
Result
"b" Is List("a","b","c")
true
"z" = List("a","b","c")
false
Description 3 of 4 (test that a list contains a value):
Test that a value is a member of a list of values.
This is equivalent to
Member( value, list )
.
Returns:
Boolean
Parameters:
Parameter
Data Type
Description
1
Any*
The list of values.
2
Any
The value.
Examples:
Expression
Result
List("a","b","c") Is "a"
true
List("a","b","c") = "z"
false
Description 4 of 4 (test that a list value equals another list value):
Test if two lists have identical memberships.
Returns true if both lists contain the same members,
in
the same order
, and returns false otherwise.
Returns:
Boolean
Parameters:
Parameter
Data Type
Description
1
Any*
The first list of values.
2
Any*
The second list of values.
Examples:
Expression
Result
List("a","b","c") Is List("a","b","c")
true
List("a","b","c") Is List("a","b")
false
List("a","b","c") Is List("c","b","a")
false

This article applies to:

  • Product: Contract Express

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