underscore.js _.clone[Object]

Create a shallow-copied clone of the object. Any nested objects or arrays will be copied by reference, not duplicated.

创建对象的浅拷贝克隆.如果是值类型，则拷贝值；如果是引用类型，则拷贝引用地址。

_.clone({name : 'moe'});
=> {name : 'moe'};

源码:

  _.clone = function(obj) {
    if (!_.isObject(obj)) return obj;
    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
  };