~~Title: IsDigit~~
IsDigit && bool && **True** if //string// consists only of digits. &&
string && string && String to test.
Returns **True** if //string// consists entirely of digit characters, otherwise returns **False**.
//Example://
Output(IsDigit("12345"))
--> true
Output(IsDigit("123a5"))
--> false
//See also://\\
[[isalpha]]\\
[[islower]]\\
[[ispunct]]\\
[[isspace]]\\
[[isupper]]\\