javascript error: Cannot read properties of null (reading 'value')

[poojapatel14710]

I am trying to get the default value from the textbox but it shows "selenium.common.exceptions.JavascriptException: Message: javascript error: Cannot read properties of null (reading 'value') ".

below picture is for HTML and Textbox :

and my script is:

    def test_default_value(self):
        self.open(c2cSms_data.url)
        self.wait_for_element_visible(C2cSMS.input.format([self.index]))
        default_value = self.get_value(C2cSMS.input.format([self.index]))
        self.assert_equal(default_value, 1)

[mdmintz]

Hello. You can use get_text() to get the value of an input field assuming you have the correct selector. Eg:

value = self.get_text("input")

[poojapatel14710]

Thank you sir for your quick response!! and it's work.

but could you please explain to me why I should get text instead of value?

[mdmintz]

In your case, document.querySelector() returned null, so the JS call didn't find the element. Maybe you used a different selector the first time, or the JS call wasn't smart enough.