2 ms·
It has to be '?.(...)' not '?(...)', because '?(...)' is already part of valid syntax. For example "this.myOptionalfunction?('hello'):('goodbye')".
by jlokier 6y ago
It has to be '?.(...)' not '?(...)', because '?(...)' is already part of valid syntax. For example "this.myOptionalfunction?('hello'):('goodbye')".