Selenium wait for Ajax content to load - universal approach

Question

Is there a universal approach for Selenium to wait till all ajax content has loaded? (not tied to a specific website - so it works for every ajax website)

Answer 1

As Mark Collin described in his book "Mastering Selenium Webdriver", use JavascriptExecutor let you figure out whether a website using jQuery has finished making AJAX calls

public class AdditionalConditions {

  public static ExpectedCondition jQueryAJAXCallsHaveCompleted() {
    return new ExpectedCondition() {

        @Override
        public Boolean apply(WebDriver driver) {
            return (Boolean) ((JavascriptExecutor) driver).executeScript("return (window.jQuery != null) && (jQuery.active === 0);");
        }
    };
  }
}