Question

I would like to collect all the <script> ....</script> code section present in the HTML page in some variable.

What should be the simpler way to do this, Any idea how it can be retrieved using JavaScript.??

Any help will be greatly appreciated.

Answer 1

To get a list of scripts you can use

• document.getElementsByTagName("script"); by tag
• document.scripts; Built-in collection
• document.querySelectorAll("script"); by selector
• $("script") jQuery by selector

var scripts = document.getElementsByTagName("script");
for (var i = 0; i < scripts.length; i++) {
  if (scripts[i].src) console.log(i, scripts[i].src)
  else console.log(i, scripts[i].innerHTML)
}

// To get the content of the external script 
// - I use jQuery here - only works if CORS is allowing it

// find the first script from google 
var url = $("script[src*='googleapis']")[0].src; 

$.get(url,function(data) { // get the source 
  console.log(data.split("|")[0]); // show version info
});  

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
  console.log("Inline script");
</script>
<script>
  function bla() {
    console.log("Other inline script");
  }
</script>