isDecimal

Syntax

isDecimal(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

$ isDecimal("123456");
true

$ isDecimal("1And1");
false

$ isDecimal("10.05");
false

$ isDecimal(string());
false