How to return value from JavaScript using Selenium?

Question

I executed JavaScript using this advice and I want to return a value from this script.

Answer 1

You can just return the value like this:

Java:

JavascriptExecutor js = (JavascriptExecutor) driver;         
js.executeScript("return document.title");

Python:

driver.execute_script("return document.title")
driver.execute_script("return document.querySelector('.somecssclass')")