Find out how many <script> elements there are in the document:
var x = document.scripts.length;
Click the button to display the number of script elements in the document.
<!DOCTYPE html> <html> <body> <script> document.write("Hello World!"); </script>/* w w w . j a v a 2 s.co m*/ <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() { var x = document.scripts.length; document.getElementById("demo").innerHTML = "Found " + x + " script elements."; } </script> </body> </html>
The scripts collection returns a collection of all <script> elements in the document.
The elements in the collection are sorted as they appear in the source code.
Property | Description |
---|---|
length | Returns the number of <script> elements in the collection. |
This property is read-only
Method | Description |
---|---|
[index] | Returns the <script> element from the collection with the index starting at 0. Returns null if the index number is out of range |
item(index) | Returns the <script> element from the collection with the index starting at 0. Returns null if the index number is out of range |
namedItem(id) | Returns the <script> element from the collection with the specified id. Returns null if the id does not exist |