Function JSObjectHasProperty 

pub unsafe extern "C-unwind" fn JSObjectHasProperty(
    ctx: JSContextRef,
    object: JSObjectRef,
    property_name: JSStringRef,
) -> bool

Available on crate features JSBase and JSObjectRef only.

Tests whether an object has a given property.

Parameter object: The JSObject to test.

Parameter propertyName: A JSString containing the property’s name.

Returns: true if the object has a property whose name matches propertyName, otherwise false.

Safety

• ctx must be a valid pointer.
• object must be a valid pointer.
• property_name must be a valid pointer.