Erase
Removes the named variable and deallocates dynamic-array storage space.
Synopsis
Erase varname
Arguments
The Erase statement has the following argument:
| varname | The name of the variable to be erased. |
Description
The Erase statement removes the variable and all descended nodes.
Erase may be used to insure that a variable has no defined value, such as when a named variable is used as a placeholder in an argument list.
Examples
The following example uses Erase to remove an array and its subnodes:
array = "root node"
array("subnode") = "subnode"
array("subnode", "subnode") = "subnode, subnode"
Println Exists(array) 'returns 3; variable defined and has array elements
Erase array
Println Exists(array) 'returns 0The following example uses Erase to specify an explicitly undefined placeholder variable:
Erase blankvar
tStatement = New %SQL.Statement(blankvar,"Sample")
PrintLn "Success"See Also
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EraseArray Statement
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EraseValue Statement
