JavaScript数组推送不起作用

Question

I am stuck on why this array push will not work... any help appreciated.

    var addons = new Array();

    myService.addon_dependencies(arr[i]['addoncode']).then(function(dependency) {
        console.log(dependency[0].addon_depend);  //returns A6002
        addons.push(dependency[0].addon_depend);
    });

    console.log(addons); //returns []   

Answer 1

This is because the addon_dependencies method is not finishing before you run console.log . The then method shows you're probably using some sort of promise framework. If you print it out in the then block it should work.

Answer 2

Array.push is working; your code must be executed asynchronously, hence the empty addons .

Answer 3

console.log(addons) is executed before the item is beeing pushed into the array. So you see the empty array. Try the console.log after you push new items into it.