JavaScript-将对象内的对象推送到全局数组

Question

ORIGINAL QUESTION

I'm trying to write a function in JavaScript that allows for articles from another source to be loaded on another page using an XMLHTTPRequest.

Each article is a JavaScript object containing the link, image, summary etc.

Each request will retrieve 5 articles, but I only want to show 4 articles on each button click. Because of this, I want to push the articles (objects) to a global array.

Since I'm fairly new at using XMLHTTPRequests, I can't find how to do this.

Everything works except for:

var i;
          for (i = 0; i < newArticles.length; i++) {
            articles.push(newArticles[i]);
          }

newArticles is an object containing the 5 articles (objects) which I'm trying to push to the global array titled articles.

My code:

    var articles = [];

  document.getElementById("fc-blog-button-loadmore").addEventListener("click", receiveNewArticles);

  function receiveNewArticles() {
   var http = new XMLHttpRequest();
   var url = "thelinktothepagewith5newarticles.json";
   http.onreadystatechange = function() {
        if(http.readyState == 4 && http.status == 200) {
            var newObj = JSON.parse(http.responseText);
          var newArticles = (newObj.blog.articles);
          console.log(newObj);
          console.log(newArticles);

          var i;
          for (i = 0; i < newArticles.length; i++) {
            articles.push(newArticles[i]);
          }

          console.log(articles);
        }
    }
    http.open("GET", url, true);
    http.send();
  }

SOLVED

After the helpful comments my code currently looks like this:

var articles = [];

  document.getElementById("fc-blog-button-loadmore").addEventListener("click", receiveNewArticles);

  function receiveNewArticles() {
   var http = new XMLHttpRequest();
   var url = "http://freshcotton-dev.webshopapp.com/nl/blogs/blog/page2.html?format=json";
   http.onreadystatechange = function() {
        if(http.readyState == 4 && http.status == 200) {
            var newObj = JSON.parse(http.responseText);
          var newArticles = (newObj.blog.articles);
          console.log(newObj);
          console.log(newArticles);

          articles.push(...Object.values(newArticles)) 

          console.log(articles);
        }
    }
    http.open("GET", url, true);
    http.send();
  }

Problem has been solved!

Answer 1

You can solve the issue simply by using [spread operator][1] ...

articles.push(...Object.values(newArticles));


  [1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax