out = strlength (obj) ¶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,
not strlength_bytes.
Returns double array of the same size as obj. Returns NaNs for missing strings.
See also: string.strlength_bytes