I've targeted a button and the onclick attribute contains a function call with a huge js/json object as its argument.

Inside that object, there is a url that I can extract, if I can just turn the .onclick value into a plain text string.

How to do?

CodePudding user response：

The getAttribute method will let you read a string value from an element's attribute (whereas the onclick property will give you a function).

If you have control over the site then it would probably be better to do some refactoring and move the URL into a data-* attribute which you can access from both the onclick script and the other script.

CodePudding user response：

It would be nice if you included your code. However, normally onclick calls take an event as argument. Inside of it, you can find your url.