| StringVariable | String to chop. Can be either a value or @VarName (will upvar and read/write). |
| Count | Optional. How many characters to chop. Default is 1. |
string range and has behavior consistent with values that are less than zero or past the end of the string.Note that arguments of the form XxxVariable can take either a normal value or the name of a variable to read/write, prefixed by @. See About Using @ for details.
% ChopLeft "abcd"
bcd
% ChopLeft "xyz" 2
z
% set MyString abcd
abcd
% ChopLeft @MyString 2
cd
% puts $MyString
cd