Object function (a){return new m(a)} has no method 'partial'
当我尝试在 jsfiddle ( http://jsfiddle.net/basarat/K4c9k/ )中使用部分示例 ( http://underscorejs.org/#partial ) 时出现错误
var add = function(a, b) { return a + b; };
add5 = _.partial(add, 5);
console.log(add5(10)); // prints 15