当NameNode关闭时，hadoop作业会发生什么？(What happens to hadoop job when the NameNode is down?)

 您需要通过自我实例化调用获取该函数的实例： 
 
var floatShareBar = (function() {
    var fShareBar = $('#article-share');

    this.float =  function() {
        console.log('float');
    };
    this.unfloat = function() {
        console.log("unfloat");
    };

    return this;
})();
 
 更新1：我修改它以在函数中创建一个对象来附加这些函数，因为在前面的例子中this引用了window对象 
 
var floatShareBar = (function() {
    var fShareBar = $('#article-share');
    var instance = {};

    instance.float =  function() {
        console.log('float');
    };
    instance.unfloat = function() {
        console.log("unfloat");
    };

    return instance;
})();
 
 更新2：您实际上也可以使用new关键字， 请在此处查看更多信息 
 
var floatShareBar = new (function() {
    var fShareBar = $('#article-share');

    this.float =  function() {
        console.log('float');
    };
    this.unfloat = function() {
        console.log("unfloat");
    };
})();

You need to get an instance of that function with a self instantiating call:
 
var floatShareBar = (function() {
    var fShareBar = $('#article-share');

    this.float =  function() {
        console.log('float');
    };
    this.unfloat = function() {
        console.log("unfloat");
    };

    return this;
})();
 
UPDATE 1: I modified it to create an object within the function to attach those functions to, since in the previous example this refers to the window object 
 
var floatShareBar = (function() {
    var fShareBar = $('#article-share');
    var instance = {};

    instance.float =  function() {
        console.log('float');
    };
    instance.unfloat = function() {
        console.log("unfloat");
    };

    return instance;
})();
 
UPDATE 2: You can actually just use the new keyword as well, look here for more info
 
var floatShareBar = new (function() {
    var fShareBar = $('#article-share');

    this.float =  function() {
        console.log('float');
    };
    this.unfloat = function() {
        console.log("unfloat");
    };
})();