Including a script src into js file [duplicate]

Question

Im trying to integrate a firebase config into my js file rather than directly into html file. Given:

<script src="https://www.gstatic.com/firebasejs/3.4.0/firebase.js"></script>
<script>
  // Initialize Firebase
  var config = {
  .......
  }
</script>

and my js file:

$(function() {
......
}

how can I integrate the line <script src="https://www.gstatic.com/firebasejs/3.4.0/firebase.js"></script> into my js file ?

Answer 1

You can create a tag script and append to body of document.

var script = document.createElement('script');
    script.type = 'text/javascript';

    script.src = 'https://www.gstatic.com/firebasejs/3.4.0/firebase.js';
    document.body.appendChild(script);