How can a create an if else statement, that says if something is a property of a specific object, do this?

for example I'm creating a simple rpg, and I have a rangedWeapons and a meleeWeapons object that contains different weapons as properties, I need for example an if statement that says if the player equipped weapon is a rangedWeapons property do this.

something like this , I tried putting just rangedWeapons for example but it obviously didnt work

update/thanks, I fixed the operator issue, however it still isn't working

I would have thought there would be a native Object method or something that compares object properties, but I'm not seeing anything. If someone can find any typos keeping this from working or point me in the direction or a native method it would great, thanks.

if(player.equipped.weapon===rangedWeapons){
                player.equipped.weapon.damage+=10;
            }
            else if(player.equipped.weapon===meleeWeapons){
                   player.equipped.weapon.damage += 5;}