写一段最短的代码，用上js所有关键字

new function() {    do break;while(typeof delete this);    for(var a;void 0;)        continue    if (null)        with(0)    try{        switch(1 in 1 instanceof 1) {            case false:            default:throw true        }    }catch(a){}finally{}else return  // console.log("去掉注释可以运行到这里")};