string

Any valid string expression. If string contains Null, Null is returned.

varname

Any valid variable name. If varname contains Null, Null is returned.

The following example uses the Len function to return the number of characters in a string:

	Copy Code
Dim MyString MyString = Len("VBSCRIPT") ' MyString contains 8.

Note
The LenB function is used with byte data contained in a string. Instead of returning the number of characters in a string, LenB returns the number of bytes used to represent that string.

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Reference