Selenium Cheat Sheet

JavascriptExecutor js=(JavascriptExecutor)driver;
//to click a button
js.executeScript(“document.getElementByID(‘element id ’).click();”);
js.executeScript("arguments[0].click();", WebElement);
//to send text
js.executeScript(“document.getElementByID(‘element id ’).value = ‘xyz’;”);
//Scroll window by 
js.executeScript("window.scrollBy(0,500)");

webElement element = driver.findElement(By.xpath("//input[@class='name']"));

js.executeScript("arguments[0].scrollIntoView( );",element);
//to scroll down to the bottom of a webpage
js.executeAsyncScript("window.scrollBy(0,document.body.scrollHeight)");
//Scroll to particular element
js.executeScript("document.querySelector('.table').scrollTop=5000");
//to refresh window
js.executeScript(“location.reload()”);
js.executeScript(“history.go(0)”);
To select checkbox
js.executeScript(“document.getElementByID(‘element id ’).checked=false;”);
//call executeAsyncScript() method to wait for 3 seconds
js.executeAsyncScript(“window.setTimeout(arguments[arguments.length — 1], 3000);”)
//To get the URL of a webpage
js.executeScript(“return document.URL;”).toString();
To find hidden element:
js.executeScript(“arguments[0].click();”, element);
//To navigate to different page:
js.executeScript(“window.location = ‘pageUrl’”);
To select option from dropdown list:
// set the dropdown value to ‘USA’ using javascript
js.executeScript(“arguments[0].value=’USA’”, driver.findElements(By.xpath("//input[@id='country-name']");

//Get the Title of a webpage
js.executeScript(“return document.title;”).toString();

//Get the domain
js.executeScript(“return document.domain;”).toString();

To click on a SubMenu which is only visible on mouse hover on Menu:
js.executeScript(“$(‘ul.menus.menu-secondary.sf-js-enabled.sub-menu li’).hover()”);

To handle Datepickers
WebElement datePicker = driver.findElement(By.xpath("//input[@id='date-field']"));          
       // Remove readonly HTML attribute  
  js.executeScript("document.getElementById('date-field')).removeAttribute('readonly');", datePicker);
datePicker.clear();
            // Enter Date into the field
  driver.findElement(By.xpath("//input[@id='date-field']")).sendKeys("02-01-2008");      
  }

                                         Selenium 4 Relative Locators

//Above Locator
WebElement password = driver.findElement(By.id("password"));
WebElement username = driver.findElement(with(By.tagName("input")).above(password));

//Below Locator
WebElement username = driver.findElement(By.id(“uname"));
WebElement password = driver.findElement(with(By.tagName("input")).below(username));

//LeftOf
WebElement acceptBtn = driver.findElement(By.id(“acceptbtn"));
WebElement cancelBtn =driver.findElement(with(By.tagName(“cancelbtn")).toLeftOf(acceptBtn));

//RightOf
WebElement cancelBtn = driver.findElement(By.id(“cancelbtn"));
WebElement acceptBtn =driver.findElement(with(By.tagName(“acceptbtn")).toRightOf(cancelBtn));

//near
WebElement usernamelbl = driver.findElement(By.id("lbl-uname"));
WebElement username = driver.findElement(with(By.tagName("input")).near(usernamelbl));

//A new window is opened and switches to it
driver.switchTo().newWindow(WindowType.WINDOW);

// A new tab is opened and switches to it
driver.switchTo().newWindow(WindowType.TAB);

Get Screenshot

                        WebElement link = driver.findElement(By.tagName("a"));

                        File f = link.getScreenshotAs(OutputType.FILE);

                        FileUtils.copyFile(f, new File("img.png"));

                                                                 Lambda expressions

Lambda expressions were introduced in Java 8 and are a powerful tool for functional programming. They can be used to simplify code and make it more concise.  It is an anonymous function that can be passed around as an object. It is a concise way to write an inline function.

              (x, y) -> x + y, In this one lambda expression takes two arguments, x and y, and returns the sum of those arguments.

Lambda expressions can be used in a variety of places, such as:

Method arguments:

Lambda expressions can be passed as arguments to forEach methods that accept functions as parameters.

               List<Integer> li=Arrays.asList(85, 19, 21,56);

              li.stream().sorted().forEach(n->{System.out.println(n);});

Lambda expressions has been passed as arguments to forEach method

Collections

Lambda expressions can be used to filter, map, and reduce collections.

      String[] places = { "Canada", "India", "Singapore", "USA", "Spain" , "Iran", "Italy", "Indonesiya"};

      List<String> myplaces = Arrays.asList(places);

      myplaces.stream().filter((p) -> p.startsWith("S")).map((p) -> p.toUpperCase())

.sorted().forEach((p) -> System.out.println(p));

Stream API

Lambda expressions can be used to process streams of data.

myplaces.stream().map((p) -> p.toUpperCase()).forEach((p) -> System.out.println(p));