延迟加载外部 javascript

Question

I am using a javascript that's load iframe on the website. i want to lazy load that script. i tried async or defer and loading dynamically but it doesn't load iframe. is there any way to load this script lazy or after a few seconds.

<div class="editorskit-no-mobile">
<script src="//idx.diversesolutions.com/scripts/controls/Remote-Frame.aspx?MasterAccountID=1606&amp;SearchSetupID=41&amp;LinkID=474907&amp;Height=2000"></script>
</div> 

Answer 1

a very simple solution from your code, leave the <div> without content

<div class="editorskit-no-mobile"></div> 

and then, a simple createElement and appendChild

<script>
  var divElm = document.querySelector('.editorskit-no-mobile')
  setTimeout(function() {
    appendScript(divElm)
  }, 2000) // 2 seconds

  var appendScript = function(elm) {
    var s = document.createElement('script')
    s.src = '//idx.diversesolutions.com/scripts/controls/Remote-Frame.aspx?MasterAccountID=1606&amp;SearchSetupID=41&amp;LinkID=474907&amp;Height=2000'
    s.type = 'text/javascript'
    s.async = !0
    elm.appendChild(s)
  }
</script>

this way, you are creating the <script> tag on the fly, without loading anything until it actually appends it into the DOM...