var loadJS = function(url){
    var scriptTag = document.createElement('script');
	scriptTag.type = 'text/javascript';
	scriptTag.setAttribute('nonce','22os9h3sdfa');
	scriptTag.src = url;
    document.body.appendChild(scriptTag);
    return scriptTag;
};
	externalScript1 = loadJS('js/jquery-3_1_1.min.js');
	externalScript2 = loadJS('js/library.js');

externalScript1.then(function() {
   console.log("now jQuery work!");
});