Conditionally loading 3rd party scripts

[csdude55]

I'm specifically wanted to load Google Ad Manager ONLY under certain conditions.

I haven't done this in a long time, but I think this is right?

if (condition) {
 var scriptEle = document.createElement('script');

 scriptEle.setAttribute('src', 'https://securepubads.g.doubleclick.net/tag/js/gpt.js');
 scriptEle.setAttribute('type', 'text/javascript');
 scriptEle.setAttribute('async', true);

 document.body.appendChild(scriptEle);

 // do stuff
}

Assuming so, would this be the correct way to also load Adsense?

if (condition) {
 var scriptEle = document.createElement('script');

 // GPT
 scriptEle.setAttribute('src', 'https://securepubads.g.doubleclick.net/tag/js/gpt.js');
 scriptEle.setAttribute('type', 'text/javascript');
 scriptEle.setAttribute('async', true);

 document.body.appendChild(scriptEle);

 // Adsense
 // note that I'm reusing scriptEle instead of a second var
 scriptEle.setAttribute('src', 'https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-12345');

 // do I actually need to set "type" and "async" again, since it's the same as above?
 scriptEle.setAttribute('type', 'text/javascript');
 scriptEle.setAttribute('async', true);

 // note that Adsense uses "crossorigin", is this the right way to set it here?
 scriptEle.setAttribute('crossorigin', 'crossorigin');

 document.body.appendChild(scriptEle);

 // do stuff
}