IsFloat.md

IsFloat(Value) returns whether Value is a floating-point value.

It returns true for -inf, inf, and nan. AutoHotkey does not have literals for these values, but calculations can produce them.

Examples

A   := 1.0
B   := 2
C   := "nan"
Inf := 9.9 ** 999
NaN := Inf - Inf

IsFloat(A)    ; 1
IsFloat(B)    ; 0
IsFloat(C)    ; 0
IsFloat(Inf)  ; 1
IsFloat(NaN)  ; 1