how made a Return after conditional?

hey why we can not do this in JS ?

valur && return valur;

example

function inGUI(x, y){ // check if is in gui
    for (var i = DEBUG.children;i--;){
        var gui = DEBUG.children[i];
        var check = isInside.call(gui,x,y);
        check && return check; // not work

    };
};

why i need to make a IF condition

if(check){return check};