Parse data inside script tag which loaded a certain script

Question

Sometimes you see code like this.

<script type="text/javascript" src="https://apis.google.com/js/plusone.js">
      {lang:'en', parsetags:'explicit'}
</script>

I'd like to know how it's possible to parse the object literal inside this script tag from the loaded script.

When the script is run search for the last script tag (?), or when the DOM is fully loaded search for the script tag with the src value you want. — TheZ
– TheZ, Commented Jul 3, 2012 at 22:24
Related: stackoverflow.com/questions/403967/… and partially ejohn.org/blog/degrading-script-tags — ThiefMaster
– ThiefMaster, Commented Jul 3, 2012 at 22:26

Community · Accepted Answer · 2017-05-23 12:15:47Z

2

var scripts = document.getElementsByTagName('script');
var thisScriptTag = scripts[scripts.length - 1];
var data = thisScriptTag.textContent || thisScriptTag.innerText;
alert(data);

If you have JSON data you'd use JSON.parse() to convert the data to a JavaScript object. Note that the code must not be wrapped in a DOMready/onload event - it needs to run right when that <script> tag is processed.

_{The code to get the current script tag was taken from How may I reference the script tag that loaded the currently-executing script?}

edited May 23, 2017 at 12:15

CommunityBot

11 silver badge

answered Jul 3, 2012 at 22:25

ThiefMaster

320k85 gold badges608 silver badges648 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Parse data inside script tag which loaded a certain script

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related