String length in characters (actually, UTF-16 code units).
Gets the length of each string, counted in UTF-16 code units. In most cases, this is the same as the number of characters. The exception is for characters outside the Unicode Basic Multilingual Plane, which are represented with UTF-16 surrogate pairs, and thus will count as 2 characters each.
The reason this method counts UTF-16 code units, instead of Unicode code points (true characters), is for Matlab compatibility.
This is the string length method you probably want to use,
Returns double array of the same size as obj. Returns NaNs for missing strings.
See also: string.strlength_bytes