VarType: Difference between revisions
Jump to navigation
Jump to search
(Created page with "VARTYPE(''variable'') '''Description''' VARTYPE returns an integer that indicates the type of a variable. The required parameter, ''variable'', is any variable that doesn't ...") |
|||
| (8 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
''This function is for BASIC compatibility. It is not available in pure JavaScript projects.'' | |||
'' | VarType(''variable'') | ||
== Description == | |||
VarType returns an integer that indicates the type of a variable. The required parameter, ''variable'', is any variable that doesn't contain a user-defined type. | |||
When ''variable'' is an array, the value returned is equal to the array constant plus the constant that specifies the element-type. | When ''variable'' is an array, the value returned is equal to the array constant plus the constant that specifies the element-type. | ||
'''Table 25: | '''Table 25: VarType return values''' | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Constant !! Value !! Description | ! Constant !! Value !! Description | ||
|- | |||
| vbEmpty || 0 || Empty | |||
|- | |||
| vbNull || 1 || Null | |||
|- | |- | ||
| vbInteger || 2 || Integer | | vbInteger || 2 || Integer | ||
|- | |||
| vbLong || 3 || Long | |||
|- | |||
| vbSingle || 4 || Single-precision floating-point | |||
|- | |- | ||
| vbDouble || 5 || Double-precision floating-point | | vbDouble || 5 || Double-precision floating-point | ||
| Line 24: | Line 34: | ||
|- | |- | ||
| vbObject || 9 || Object | | vbObject || 9 || Object | ||
|- | |||
| vbError || 10 || Error | |||
|- | |- | ||
| vbBoolean || 11 || Boolean | | vbBoolean || 11 || Boolean | ||
|- | |||
| vbVariant || 12 || Variant | |||
|- | |||
| vbDataObject || 13 || Data-access Object | |||
|- | |||
| vbByte || 17 || Byte | |||
|- | |- | ||
| vbArray || 8192 || Array | | vbArray || 8192 || Array | ||
|} | |} | ||
== Example (Basic) == | |||
<pre> | <pre> | ||
Rem VarType Example | |||
' | 'VarType returns variable type as an integer | ||
Dim nInteger, nSingle | |||
nInteger = | nInteger = CInt(44) | ||
Print 44 & " is VarType " & VarType(nInteger) | |||
nSingle = CSNG(99.44) | nSingle = CSNG(99.44) | ||
Print 99.44 & "isVarType" & VarType(nSingle) | |||
</pre> | </pre> | ||
== Output == | |||
<pre> | <pre> | ||
44 is | 44 is VarType 2 | ||
99.44 is | 99.44 is VarType 4 | ||
</pre> | </pre> | ||
== Related Items == | |||
[[is (operator)|Is]], [[typename|TypeName]] | |||
[[Category:Language Reference]] | |||
[[Category:Variable Handling]] | |||
[[ | [[Category:BASIC Functions]] | ||
Latest revision as of 15:39, 25 March 2019
This function is for BASIC compatibility. It is not available in pure JavaScript projects.
VarType(variable)
Description
VarType returns an integer that indicates the type of a variable. The required parameter, variable, is any variable that doesn't contain a user-defined type.
When variable is an array, the value returned is equal to the array constant plus the constant that specifies the element-type.
Table 25: VarType return values
| Constant | Value | Description |
|---|---|---|
| vbEmpty | 0 | Empty |
| vbNull | 1 | Null |
| vbInteger | 2 | Integer |
| vbLong | 3 | Long |
| vbSingle | 4 | Single-precision floating-point |
| vbDouble | 5 | Double-precision floating-point |
| vbCurrency | 6 | Currency |
| vbDate | 7 | Date |
| vbString | 8 | String |
| vbObject | 9 | Object |
| vbError | 10 | Error |
| vbBoolean | 11 | Boolean |
| vbVariant | 12 | Variant |
| vbDataObject | 13 | Data-access Object |
| vbByte | 17 | Byte |
| vbArray | 8192 | Array |
Example (Basic)
Rem VarType Example 'VarType returns variable type as an integer Dim nInteger, nSingle nInteger = CInt(44) Print 44 & " is VarType " & VarType(nInteger) nSingle = CSNG(99.44) Print 99.44 & "isVarType" & VarType(nSingle)
Output
44 is VarType 2 99.44 is VarType 4