【Avalon】factory

(function(global, factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        // For CommonJS and CommonJS-like environments where a proper `window`
        // is present, execute the factory and get avalon.
        // For environments that do not have a `window` with a `document`
        // (such as Node.js), expose a factory as module.exports.
        // This accentuates the need for the creation of a real `window`.
        // e.g. var avalon = require("avalon")(window);
        module.exports = global.document ? factory(global, true) : function(w) {
            if (!w.document) {
                throw new Error("Avalon requires a window with a document")
            }
            return factory(w)
        }
    } else {
        factory(global)
    }
}(typeof window != 'undefined' ? window : this, function(window, noGlobal) {
    var avalon = {}
    if (typeof define === "function" && define.amd) {
        define("avalon", [], function() {
            return avalon
        })
    }
// Expose avalon identifiers, even in AMD
// and CommonJS for browser emulators
    if (noGlobal === void 0) {
        window.avalon = avalon
    }

    return avalon
}))