isNumeric
Syntax
isNumeric(X)
Details
Return true if all characters in the string are numbers. For null values of the STRING type, return false.
Note:
isNumeric and isDigit are equivalent and can be used interchangeably.Parameters
X is a STRING scalar or vector.
Returns
- When X is a scalar, it returns a Boolean scalar.
- When X is a vector, it returns a Boolean vector.
- When X is a table, it returns a table.
Examples
isNumeric("123456");
// output: true
isNumeric("1And1");
// output: false
isNumeric("10.05");
// output: false
isNumeric(string());
// output: false