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This function is for BASIC compatibility. It is not available in pure JavaScript projects.

Len(string | variable)


Len returns an integer specifying the number of characters in a string, or the number of elements in an array.

Example (Basic)

Rem Len Example
'Len returns string length or variable size
Dim Frog, Survived
Frog = "Staring"
Survived = 2
Print "Len of Frog:", Len(Frog)
Print "LenB of Frog:", LenB(Frog)
Print "Len of Survived:", Len(Survived)


Len of Frog:  7
LenB of Frog: 7
Len of Survived:     1