Run array with WHEN method, javascript

Question

Well, I have an array of numbers and I need to send each separate checker to the server, but I need to wait for all of them to be executed before I perform my final action. I searched and then discovered the method/function WHEN waiting for all requests to be closed to execute X function.

The problem is that I don’t know how to run all the contents of the array and insert it into that WHEN.. I have no idea at all..

See a sample of her:

$.when(ajax1(), ajax2(), ajax3(), ajax4()).done(function(a1, a2, a3, a4){

but my array data doesn’t have only a1, a2, a3 e a4 they can have much more up to "infinite" or simply 1 or 2 items.

My array in case: [1,2,3,4,5,6,6,77,44,23423,234212344]

Ah, I use it forEach to run the array

Answer 1

I would say that sending "1 to infinite" ajax requests simultaneously is not a very good idea.

In fact jquery has a new API for files and you can pass several ajax requests as arguments for $.when() and then run a function when all have been run using the .done().

If you have a reasonable number in this array I think it’s a good idea to use the $.when(), or else I think you should use the .then(), for the requests to wait for each other.

To answer your question you can ask like this:

var array = [1,2,3,4,5,6,6,77,44,23423,234212344];
var ajaxArray= array.map(function(nr){
    return $.ajax({url: 'meusite.com', data: nr});
});
$.when.apply($, array).done(function(){
    alert('está pronto!');
    console.log(arguments); // array onde cada elemento corresponde à resposta de cada pedido ajax
});

If you want to chain instead of sending them all at once you can use it like this:

var pr = $.Deferred(); // promise vazia
array.forEach(function(el){
    pr = pr.then(function(){
        return $.ajax({url: 'meusite.com', data: nr});
    });
});

pr.then(function(){
    // esta é a ultima chamada e onde podes correr o codigo final
});