One Promise For Multiple Promises - Concurrency Issue

In the method 'myMethod' of my 'gulpfile.js' I want to create multiple Promises. The quantity depends on the array size (method parameter). When I call the method I want to make su

Solution 1:

At the time of the console.log, the first promise promise = del(array1, {force: true}); is not yet finished, so none of the code in the then is yet executed. That's why your promises are empty.

You can simply return in a then another promise:

var myMethod = function(array1, array2){
    var promise = del(array1, {force: true});

    return promise.then(() => {
        returnPromise.all(array2.map(array2value => {
            returnnewPromise(function(resolve, reject) {
                deleteEmpty(array2value, {force: true}, (err, deleted) => {
                    if (err) {
                        reject(err);
                    } else{
                        resolve()
                    }
                });
            });
        }
    });
}