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Description Syntax Return
Datatype Example Migration
IsEmpty Function - Visual Basic 6.0
(VB 6.0) |
| Returns a Boolean value indicating whether a variable
has been initialized. |
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Syntax: |
IsEmpty(expression)
| Parameter |
Description |
| expression |
Required. Can be any expression. However, because IsEmpty
is used to determine if individual variables are initialized,
the expression argument is most often a single variable name. |
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Return Data type: |
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Boolean |
Example: |
Dim vStr as String, vDt as Date, vInt as
Integer, vBool as Boolean
Dim vArr(4, 3) as String, vSng as Single
Dim
vVar1, vVar2, vVar3 as Variant
vVar2 = "Checking"
vStr = "ABCD"
| Statement |
Result |
Remark |
| IsEmpty(1) |
False |
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| IsEmpty(vStr) |
False |
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| IsEmpty(vArr) |
False |
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| IsEmpty(vDt) |
False |
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| IsEmpty("17/03/2007") |
False |
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| IsEmpty("1234abcd") |
False |
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| IsEmpty(vInt) |
False |
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| IsEmpty(vBool) |
False |
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| IsEmpty(vSng) |
False |
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| IsEmpty(unknown) |
True |
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| IsEmpty(vVar1) |
True |
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| IsEmpty(vVar2) |
False |
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| IsEmpty(vVar3) |
True |
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| IsEmpty(True) |
False |
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| IsEmpty(False) |
False |
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| IsEmpty(null) |
False |
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| IsEmpty(0) |
False |
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| IsEmpty("abcd") |
False |
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| Migration from Visual Basic 6.0 (VB 6.0) to |
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IsEmpty Function in VB Script (VBS) |
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IsEmpty Function in JScript (JS) |
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IsEmpty Function in ASP (Active Server Page) |
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IsEmpty Function in PHP Script |
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IsEmpty Function in MS-Access |
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IsEmpty Function in MS SQL Server |
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IsEmpty Function in Oracle |
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IsEmpty Function in C Language |
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IsEmpty Function in C++ Language |
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IsEmpty Function in Foxpro |
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IsEmpty Function in Fortran |
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IsEmpty Function in MS Excel Sheet |
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IsDate Function