numFilter (Number filter)

$numFilter checks the given parameters for valid numeric values.
Tooltip
Syntax: $numFilter(a[,b[,c[...]]])
Parameter
Description
a
The field, list or value to check for a numeric value (e.g. '5', $el(3,true), $el(3)).
other parameters
Other fields similar to a.
Returns a list of valid numeric values.
Example: $numFilter(13,hello,$null,5) – returns [13,5]

Parameter	Description
`a`	The field, list or value to check for a numeric value (e.g. '5', $el(3,true), $el(3)).
`other parameters`	Other fields similar to a.

Syntax

$numFilter(a [, b[, c[...]]])

Parameter

Name	Description
a	The field, list or value to check for a numeric value (e.g. ' 5 ', $el(3,true) , $el(3) ).
Other parameters	Other fields similar to a.

Return value

A list of valid numeric elements.

Example

Search all numeric values from the repeating element with the id 28:

Syntax	Result
$numFilter($el(28,true))	e.g. [3.14, 7, 42]