JavaScriptExecutor in Selenium WebDriver with Example (hard)
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Questions and Answers

Which interface helps to execute JavaScript through Selenium Webdriver?

  • JavaScriptExecutor (correct)
  • WebDriver
  • Selenium
  • WebElement

    • What are the two methods provided by JavaScriptExecutor?

  • execute and executeAsync
  • runScript and runAsyncScript
  • executeScript and executeAsyncScript (correct)
  • executeJavaScript and executeAsyncJavaScript

    • When would you use JavaScriptExecutor in Selenium Webdriver?

  • To identify and perform operations on a web page
  • To execute Java code
  • To import extra plugins or add-ons
  • When locators like XPath and CSS do not work (correct)

    • What is the purpose of the 'executeScript' method in JavaScriptExecutor?

    <p>To execute JavaScript in the context of the currently selected frame or window</p> Signup and view all the answers

    Do you need an extra plugin or add-on to use JavaScriptExecutor in Selenium?

    <p>No, Selenium supports JavaScriptExecutor without any extra plugin or add-on</p> Signup and view all the answers

    What is the purpose of the 'executeAsyncScript' method in JavaScriptExecutor?

    <p>To execute asynchronous JavaScript in the context of the currently selected frame or window</p> Signup and view all the answers

    What type of function does the script used in the 'executeScript' method run as?

    <p>Anonymous function</p> Signup and view all the answers

    What is the purpose of importing 'org.openqa.selenium.JavascriptExecutor' in the script?

    <p>To use JavaScriptExecutor in Selenium</p> Signup and view all the answers

    What type of values can the script used in the 'executeScript' method return?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of the JavaScriptExecutor interface in Selenium Webdriver?

    <p>To execute JavaScript through Selenium Webdriver</p> Signup and view all the answers

    Which method of JavaScriptExecutor in Selenium Webdriver allows writing tests more like normal coding?

    <p>executeAsyncScript</p> Signup and view all the answers

    What is the purpose of the scrollBy method in Selenium Webdriver?

    <p>To scroll down by a specified number of pixels</p> Signup and view all the answers

    Which method is used to set the script timeout in Selenium Webdriver?

    <p>setScriptTimeout</p> Signup and view all the answers

    What does the executeAsyncScript method do in Selenium Webdriver?

    <p>Executes the JavaScript asynchronously</p> Signup and view all the answers

    What is the purpose of the setTimeout method in JavaScript?

    <p>To wait for a specified time</p> Signup and view all the answers

    What is the purpose of the setScriptTimeout method in Selenium Webdriver?

    <p>To set the script timeout</p> Signup and view all the answers

    What does the scrollBy method do in Selenium Webdriver?

    <p>Scrolls down by a specified number of pixels</p> Signup and view all the answers

    What is the purpose of the executescript method in Selenium Webdriver?

    <p>To execute JavaScript synchronously</p> Signup and view all the answers

    What is the purpose of the executeAsyncScript method in Selenium Webdriver?

    <p>To execute JavaScript asynchronously</p> Signup and view all the answers

    What is the purpose of the setTimeout method in Selenium Webdriver?

    <p>To wait for a specified time</p> Signup and view all the answers

    Which data types can be returned by the JavaScriptExecutor in Selenium?

    <p>Boolean</p> Signup and view all the answers

    What is the purpose of the executeAsyncScript function in Selenium?

    <p>To render the page more quickly</p> Signup and view all the answers

    How do you use the JavaScriptExecutor in Selenium?

    <p>Import the package and call the executeScript method</p> Signup and view all the answers

    What does the executeScript method of the JavaScriptExecutor do?

    <p>Performs a click on an element</p> Signup and view all the answers

    In the first example provided, what is the purpose of the JavaScriptExecutor?

    <p>To perform a click on a button</p> Signup and view all the answers

    What is the output of the first example provided?

    <p>Successful click on a button and display of an alert window</p> Signup and view all the answers

    In the second example provided, what information is fetched using the JavaScriptExecutor?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of the executeScript method in the second example provided?

    <p>To navigate to a different page</p> Signup and view all the answers

    What is the output of the second example provided?

    <p>Display of the URL, title name, and domain name of the site</p> Signup and view all the answers

    What is the purpose of the window.location property in the second example provided?

    <p>To navigate to a different page</p> Signup and view all the answers

    Study Notes

    JavaScriptExecutor in Selenium Webdriver

    • JavaScriptExecutor helps execute JavaScript through Selenium Webdriver
    • Two methods provided by JavaScriptExecutor: executeScript and executeAsyncScript

    Methods of JavaScriptExecutor

    • executeScript method:
      • Purpose: executes a JavaScript code snippet
      • Allows executing JavaScript in the context of the current page
      • Runs the script as a function in the page
      • Can return values such as String, Long, Boolean, List, and WebElement
    • executeAsyncScript method:
      • Purpose: executes an asynchronous JavaScript code snippet
      • Allows executing asynchronous JavaScript in the context of the current page
      • Can return values such as String, Long, Boolean, List, and WebElement

    Using JavaScriptExecutor

    • No extra plugin or add-on required to use JavaScriptExecutor
    • import org.openqa.selenium.JavascriptExecutor is required to use JavaScriptExecutor
    • Useful when Selenium Webdriver cannot perform an operation due to limitations

    ScrollBy Method

    • scrollBy method: scrolls the current page by the specified amount
    • Purpose: simulates scrolling on the webpage

    Setting Script Timeout

    • setTimeout method: sets the script timeout in milliseconds
    • setScriptTimeout method: sets the script timeout in Selenium Webdriver

    Purpose of JavaScriptExecutor

    • Allows executing JavaScript code in the context of the current page
    • Enables writing tests more like normal coding
    • Helps overcome limitations of Selenium Webdriver

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    Description

    Learn how to execute JavaScript code using Selenium Webdriver with the help of JavaScriptExecutor interface. Discover the two methods it provides and enhance your Java programming skills.

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