Object.keys(obj).filter(function(x){ return !~obj[x].indexOf(7); })
var rez=[]
for(var key in obj)if(obj[key].indexOf(7)==-1)rez.push(key);
<form action="/some/example.htm">
<button type="submit">Ссылка-кнопка</button>
</form>
var timeoutID;
$('#btn').click(function () {
test();
});
function test() {
clearTimeout(timeoutID);
timeoutID = setTimeout(function () {
console.log('1');
}, 3000);
}