async.each not iterating when using promises

Question

I am trying to run an asynchronous loop async.each over an array of objects. On each object in the array, I am trying to run two functions sequentially (using

Answer 1

It turns out that that I made an error in the getKeywords function. I was reading from a file, then iterating through each line by using a for loop and pushing the result to an array. This array was then returned by the function.

async.each was working perfectly but was only ever receiving an array of length 1 to iterate over.

I fixed this problem by changing the for loop to an async.each loop

function getKeywords(keywordsFilename){
    //get keywords from the file
    return new Promise( function (resolve, reject) {
        var keywords = [];
        fs.readFile(keywordsFilename, function read(err, data) {
            if (err) {
                reject(err);
            }
            content = data.toString();
            var lines = content.split("\n");
            async.each(lines, function(line, callback) {
                if (line[0] === "#" || line == "") {
                    callback();
                }
                else {
                    keywords.push(extractKeyword(line));
                    callback();
                }
            }, function (err) {
                resolve(keywords);
            });
        });
    });
}

Writing the problem out helped, let me know if I should delete the question.

Thanks for your help Mukesh Sharma and rsp.