JavaScript PromiseAll ES5 polyfill | Manage async await requests

promiseAll.js

// Desc: JavaScript PromiseAll ES5 polyfill | Manage async await requests
// Usage: oPromiseAll.init({ tokens: ["totals","details"], fCB: function(){ oEvoCart.refresh(["items"]); } });
var oPromiseAll = (function(){ // Manage async await requests
	var oConfig={}, bInit=false, nCnt=0;
	return {
		"init": function( _config ){
			oConfig = _config;
			bInit = true;
			nCnt=0;
		},
		"update": function( _token ){
			if( bInit && (oConfig.tokens.indexOf( _token ) != -1 ) ){
				if( ++nCnt === ( oConfig.tokens.length ) ){
					oConfig.fCB();
					bInit = false;
				}
			}
		}
	}
})();

Usage:
oPromiseAll.init({ tokens: ["totals"], fCB: function(){ oEvoCart.refresh(["items"]); } });