code: function(e) {
        var tooltip = this.$(".ui-tooltip-top");
        var val = this.input.val();
        tooltip.fadeOut();
        if (this.tooltipTimeout) clearTimeout(this.tooltipTimeout);
        if (val == '' || val == this.input.attr('placeholder')) return;
        var show = function(){ tooltip.show().fadeIn(); };
        this.tooltipTimeout = _.delay(show, 1000);
      }
docs: Lazily show the tooltip that tells you to press `enter` to save a new todo item, after one second.