isfinite

isfinite, function

def pure isfinite(n: number): boolean
def pure isfinite(n: f64): boolean

Returns true when n is a finite numeric value. It returns false for both NaN and Infinity.

Examples

table T = with
  [| as Label, as Value |]
  [| "finite", 2 |]
  [| "infinite", 1e30 |]

T.Square = T.Value * T.Value

show table "Finite check" with
  T.Label
  isfinite(T.Square) as "IsFinite"

This outputs the following table:

Remarks

Both overloads are evaluated at runtime, not in const expressions.

See also

• isinfinity
• isnan