NUM
Returns whether a value is numeric.
Synopsis
NUM(string)
Arguments
| string | An expression that resolves to a string or numeric. |
Description
The NUM function determines whether a value is numeric or non-numeric. If string is a non-numeric value, NUM returns 0. If string is a numeric value, NUM returns 1. A numeric value can contain the numerals 0 through 9, plus and minus signs, and the decimal point. NUM also returns 1 for the null string.
You can use the NUMS function to make the same determination of each element of a dynamic array.
