The result is a Number, which is the number of display cells String {expr} occupies. A Tab character is counted as one cell, alternatively use |strdisplaywidth()|. When {expr} contains characters with East Asian Width Class Ambiguous, this function's return value depends on 'ambiwidth'. Also see |strlen()|, |strdisplaywidth()| and |strchars()|. Can also be used as a |method|: GetString()->strwidth()