LEN(string | varname)

Returns the number of characters in a string (Long).

stringThe text string (String).
varnameThe name of the variable (String).

* When VBA stores a string in memory, it always stores the length of the string in a long integer at the start of the string.
* This function retrieves this value and is therefore faster than having to examine the actual characters.
* This function is useful for determining whether a string is a zero-length string ("") and should be used before comparing to a zero length string.
* You must only enter one of the two arguments (either "string" or "varname").
* This function can also be used to determine the number of bytes used to store a variable.
* If "varname" is Null, then Null is returned.
* If "varname" is a Variant then it is treated the same as a string.
* If "varname" is a user defined type, then the size returned is as it will be written to a file is returned.
* You can use the LENB function to use with byte data.
* The equivalent Excel function is LEN
* The equivalent .NET function is Microsoft.VisualBasic.Strings.Len
* For the Microsoft documentation refer to learn.microsoft.com

Debug.Print Len("sometext")        '= 8  
Debug.Print Len("length of text") '= 14
Debug.Print Len("true") '= 4
Debug.Print Len(true) ' compile error
Debug.Print Len(100) ' compile error

Dim lResult As Long
lResult = Len("development")
Debug.Print lResult

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