authority.js

export const authority = {
    getElementsByClass(classnames) {
        var classobj = newArray();
        var classint = 0;
        var tags = document.getElementsByTagName("*");
        for (var i in tags) {
            if (tags[i].nodeType == 1) {
                if (tags[i].getAttribute("class") == classnames) {
                    classobj[classint] = tags[i];
                    classint++;
                }
            }
        }
        return classobj;
    },

    cloneObj(oldObj) { //复制对象方法
        if (typeof(oldObj) != 'object') return oldObj;
        if (oldObj == null) return oldObj;
        var newObj = {};
        for (var i in oldObj)
            newObj[i] = cloneObj(oldObj[i]);
        return newObj;
    },

    extendObj() { //扩展对象
        var args = arguments;
        if (args.length < 2) return;
        var temp = cloneObj(args[0]); //调用复制对象方法
        for (var n = 1; n < args.length; n++) {
            for (var i in args[n]) {
                temp[i] = args[n][i];
            }
        }
        return temp;
    }
}

compile.authority.js

import Authority from './authority'

function showa(){
    console.log('aaaaaaaaa')
}
Authority.extendObj(showa)


Authority.showa();