Dinfio Documentation — Function Reference: attribute_exists()

Module core → attribute_exists()

Description

Check whether the object obj has attribute attr or not

attribute_exists(obj, attr)

Parameters

obj (object) — An object
attr (string) — Attribute name

Return Value

boolean — Returns true if the object obj has attribute attr, and returns false if otherwise

Usage Example

a = {
    x: 10,
    y: 20
}
 
attribute_exists(a, "x")   ' Returns true
attribute_exists(a, "z")   ' Returns false

Availability

This function is available on Dinfio version 3.1.06 or later