| ASP/VB | ||
| 型の調べ方 | response.write TypeName(var) | |
| 主な型一覧 | ||
| 宣言 | Dim var | Empty |
| 引数 | var = Request.QueryString("x") | Empty |
| フォーム | var = Request.Form("x") | Empty |
| VarType(var) | TypeName(var) | IsEmpty(var) | IsNull(var) | IsNumeric(var) | CInt(var) | var = 0 | CStr(var) | var = "" | var = "0" | |
| Empty | 0 | Empty | True | False | True | 0 | True | "" | True | False |
| Null | 1 | Null | False | True | False | (error) | (null) | (error) | (null) | (null) |
| 0 | 2 | Integer | False | False | True | 0 | True | 0 | False | True |
| "" | 8 | String | False | False | False | (error) | "" | (error) | True | False |
| "0" | 8 | String | False | False | True | 0 | True | "0" | False | True |