isNumeric
Syntax
isNumeric(X)
Arguments
X is a STRING scalar or vector.
Details
Return “true” if all characters in the string are numbers. For STRING type NULLs, return “false”.
Examples
$ isNumeric("123456");
true
$ isNumeric("1And1");
false
$ isNumeric("10.05");
false
$ isNumeric(string());
false