Batching promises

function doIt(someArray){
    var result = [];
    var realResult = [];
    someArray.forEach(function(ele){
        result.push(doPromise(ele))
    });

    function doPromise(element){
        return new Promise(function(resolve, reject){
            if(element == null)reject('Dont send me garbage');
            var response = 2 * element;
            resolve(response);
        })
    }
    return result;
}

Promise.all(doIt([1,2,3])).then(log);

function log(value){
    console.log("Logging!",value);
}