node.js - isElementPresent 不是函数

Question

我希望驱动程序等到元素可见或存在，但它根本不起作用!以下代码

it('shows events in "Event overview"', function(){
        driver.findElement(By.css('#bs-example-navbar-collapse-1 > ul > li:nth-child(2) > a')).click();
        driver.wait(function () {
            return driver.isElementPresent(By.css('body > div.container > div > div.events-container.ng-scope > div:nth-child(1) > div.row.row-event.detailed-view > div.col-xs-9.col-sm-9.col-md-10'));
        }, 3000);
});

给我以下错误

driver.isElementPresent is not a function

为什么？我从这里复制了答案:Selenium WebDriver wait till element is displayed .其他答案也不起作用。我应该展示更多我的代码吗？我正在处理一个客户项目，我不想公布客户的名字。

Answer 1

I have already answered here for this issue

For consistency with the other Selenium language bindings, WebDriver#isElementPresent() and WebElement#isElementPresent() have been deprecated. It has been completely removed from Selenium v3

因此，如果您正在使用 Selenium3 并想等到出现所需元素，您应该尝试使用 webdriver.until如下:-

const until = webdriver.until;

var el = driver.wait(until.elementLocated(By.css('body > div.container > div > div.events-container.ng-scope > div:nth-child(1) > div.row.row-event.detailed-view > div.col-xs-9.col-sm-9.col-md-10')), 3000);