第一次单击无法初始化我的变量，但第二次单击可以

Question

if I enter an article number, for example 100100 and then click on the button, my array parent is empty, although it actually has to be overwritten by the method called. however, when I click the button a second time, the array is no longer empty. Why is that? I want my array to be overwritten after the first click.

my javascript:

$(document).ready(function(){
    getAlleArtikelstücklisten();
})

function getAlleArtikelstücklisten(){
    $.ajax({
        url: "http://localhost:8080/orderLists/open",
        type: 'GET',
        contentType: "application/json",
        success: handleData
      });
}
function handleData(data){
    alleArtikelstücklisten=data;
    console.log(alleArtikelstücklisten);
}

Answer 1

Its because the console.log gets called before the getParent() function finishes. It is returning the value from the first click/call when you click it the second time.

You can pass async: false, to fix it.

$.ajax({
        url: "http://localhost:8080/m_stücklistenelement/selectByArtikelnummerStückliste?artikelnummerStückliste="+artikelnmr,
        type: 'GET',
        contentType: "application/json",
        success: handleDataParent,
        async: false
      });

Answer 2

could you have forgotten function parentheses in the 'success' calls?

success: handleData(data)