Here, try this code:
let myvehicle = "car";
let weather = "rainy";
if(weather == "rainy")
{
        if(myvehicle == "car")
        {
                console.log("I go to the office");
        }
        else if(myvehicle == "bike") 
        {
                console.log("I Work from home");
        }
}
else if(weather != "rainy")
{
        console.log("I go to the office");
}