如何在 Selenium Python execute_script 中获取返回元素的值？

Question

I using Selenium Python bindings to find some elements. in some place i need to use execute_script method. Hot to get returned values from executing this script?

So i put:

browser = driver.Chrome() #for example
script = "document.getElementById('element')"
browser.execute_script(script)

How to receive values into python log or variable from that script? Like element`s ID, text, etc.?

Answer 1

I had a problem where selenium was not able to find some element but the JavaScript console on chrome found it.

So I tried adding a " return " string in the execute script method, which in your case would be:

browser = driver.Chrome()
myElement = browser.execute_script("return document.getElementById('element_id')")

You can also do different operations like you do with Selenium Web-elements .

Example:

browser = driver.Chrome()
elementList = browser.execute_script("return document.getElementsByClassName('element_class_name')")
elementList[0].click() # Clicks the first element from list

I hope this helps!

Answer 2

I using Selenium Python bindings to find some elements. in some place i need to use execute_script method. Hot to get returned values from executing this script?

So i put:

browser = driver.Chrome() #for example
script = "document.getElementById('element')"
browser.execute_script(script)

How to receive values into python log or variable from that script? Like element`s ID, text, etc.?

Answer 3

From the js doc (python api can be found there)

If the script has a return value (ie if the script contains a return statement), then the following steps will be taken for resolving this functions return value: - For a HTML element, the value will resolve to a webdriver. WebElement - Null and undefined return values will resolve to null
- Booleans, numbers, and strings will resolve as is Functions will resolve to their string representation - For arrays and objects, each member item will be converted according to the rules above

PS Why you need to find element using executeScript?