返回一个静态值作为一个承诺

Question

In NodeJS I am wrapping a promise function to return a static variable. I am sure there is a better way but I couldn't find it on Q's docs . This works however the Q.Promise seems redundant:

function parseXML(filepath) {
    return Q.Promise(function (resolve, reject, notify) {

       readXML(filepath).then(function (xml) {

        ... (long synchronised code)...

        //console.log('products -> ', products);
        resolve(products);

    }).catch(function (err) {
        reject(err);
    });
});
}

In Angular I would use $q.when but within the Q library "when" seems to have a different role, as I understand. I am surely missing some "when" method. This is what I would like to be able to do:

 function parseXML(filepath) {
    readXML(filepath).then(function (xml) {

        ...

        // some Q method to create a fulfilled promise
        Q.???(products);

    });

}

Answer 1

Both, in Angular and Node, this should be sufficient:

function parseXML(filepath) {
    return readXML(filepath).then(function(xml) {
        ... (long synchronised code)...
        return products
    });
}