Selenium: TypeError: element.isDisplayed is not a function (Javascript driver)

[matenadasdi]

Meta -

OS:
OSX El Capitan
Selenium Version:
3.0
Browser:
Chrome & Safari

Expected Behavior -

elementIsVisible should work

Actual Behavior -

TypeError: element.isDisplayed is not a function

Steps to reproduce -

This could should be fine based on the node module and specification.

var webdriver = require('selenium-webdriver'),
    By = webdriver.By,
    until = webdriver.until;

var driver = new webdriver.Builder()
    .forBrowser('safari')
    .build();

driver.get('http://cnn.com');
driver.findElement(By.className('nav-menu')).click();
driver.wait(until.elementLocated(By.className('nav-menu'), 10000))
driver.wait(until.elementIsVisible(By.className('nav-menu')), 10000);
driver.quit();

[lukeis]

elementIsVisible takes a webelement reference, not a By object

[matenadasdi]

Ah sorry, thanks :)

[KathiresanRamkumar95]

Please Give example for that ?
What is webelement reference?
Thanks!

[ChrisGrigg]

I'd also like to know:

Please Give example for that ?
What is webelement reference?

[artemv]

@ChrisGrigg, @KathiresanRamkumar95 - smth like this:

let by = By.className('nav-menu');
driver.wait(until.elementLocated(by, 10000));
let el = driver.findElement(by);
driver.wait(until.elementIsVisible(el), 10000);

[ChrisGrigg]

@artemv thanks! That's working better than all other things I've tried.

[gigouni]

Is there any shorter response ? It works btw

[ChrisGrigg]

@gigouni you can remove 1 line:

let by = By.className('nav-menu');
driver.wait(until.elementLocated(by, 10000));
driver.wait(until.elementIsVisible(driver.findElement(by)), 10000);

[gigouni]

Huum, what about

driver.wait(until.elementLocated(By.className('foobar'), 10000));
driver.wait(until.elementIsVisible(firefox_driver.findElement(by)), 10000);

?

@ChrisGrigg I was hoping even shorter but that's cool, thanks

---

Edit

Okay I've forgotten the _by_ declaration... My bad, that's good for you.
Thanks guys

[kiragengis]

Hi, talking about that, I tried to locate in the code how you figure out when an element is displayed, can anyone guide me? Thanks

[gigouni]

@kiragengis

const ELEM_BY = BY.id("your-element-id")
driver.wait(UNTIL.elementLocated(ELEM_BY)).then(() => {
    driver.wait(UNTIL.elementIsVisible(driver.findElement(ELEM_BY)), 10000).then(() => {
        done()
    })
})

The elementIsVisible() might be your answer.

[machineghost]

Stupid question: instead of this unhelpful error message, why not throw one that says "elementIsVisible takes a webelement reference, not a By object"?

P.S. I'd be happy to submit a PR if this is desired.

[mmerrell]

PRs are always welcome.. this one sounds somewhat easy to implement, so it might be a good place to learn about the code too.
MM

Sent from my iPhone

On May 16, 2019, at 12:04 PM, Jeremy Walker [e-mail] wrote:

Stupid question: instead of this unhelpful error message, why not throw one that says "elementIsVisible takes a webelement reference, not a By object"?

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