写jQuery插件时的注意点

// xxx-plugin.js
define(['jquery'], function ($) {
 function myFunc(){};
 return myFunc;
});

var $ = require('jquery');
function myFunc(){};
module.exports = myFunc;

(function (root, factory) {
 if (typeof define === 'function' && define.amd) {
 // AMD
 define(['jquery'], factory);
 } else if (typeof exports === 'object') {
 // Node, CommonJS-like
 module.exports = factory(require('jquery'));
 } else {
 // Browser globals (root is window)
 root.returnExports = factory(root.jQuery);
 }
}(this, function ($) {
 function myFunc(){};
 return myFunc;
}));