Reading JavaScript variables using Selenium WebDriver Last Updated : 24 Jul, 2025 Comments Improve Suggest changes Like Article Like Report In web automation testing, interacting with JavaScript variables on a webpage can be essential for validating specific conditions. Selenium WebDriver provides a way to execute JavaScript directly on the browser using the `executeScript()` method. This feature allows us to read JavaScript variables and perform various actions based on their values. In this article, we will explore how to read JavaScript variables using Selenium WebDriver.PrerequisitesJava Development Kit (JDK) installed on your system.Eclipse IDE or any Java-compatible IDE.Chrome Browser.Basic knowledge of Java and Selenium WebDriver.Selenium WebDriver and Browser Driver installed.How to read JavaScript variables using Selenium WebDriverStep 1. Set up the Selenium WebDriverThe first step is to set up the WebDriver and navigate to the target webpage. Java // Import necessary classes import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; public class ReadJavaScriptVariables { public static void main(String[] args) { // Set the path to the ChromeDriver System.setProperty("webdriver.chrome.driver", "path/to/chromedriver"); // Initialize WebDriver WebDriver driver = new ChromeDriver(); // Navigate to the web page driver.get("https://www.geeksforgeeks.org/"); } } Step 2. Use JavascriptExecutor to Retrieve JavaScript Variable Java import org.openqa.selenium.JavascriptExecutor; // Use JavascriptExecutor to retrieve the JavaScript variable value JavascriptExecutor js = (JavascriptExecutor) driver; // Execute JavaScript to retrieve the variable String jsVariable = (String) js.executeScript("return document.title;"); Step 3. Capture and Display the ValueWe have to capture and display it in the console: Java // Print the value of the JavaScript variable System.out.println("JavaScript variable value: " + jsVariable); Step 4. Close Browser Java driver.quit(); Complete Code Java import org.openqa.selenium.JavascriptExecutor; import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; public class ReadJavaScriptVariables { public static void main(String[] args) { // Step 1: Set the path to the ChromeDriver System.setProperty("webdriver.chrome.driver", "path/to/chromedriver"); // Initialize WebDriver WebDriver driver = new ChromeDriver(); // Navigate to the web page driver.get("https://www.geeksforgeeks.org//"); // Step 2: Use JavascriptExecutor to retrieve the JavaScript variable value JavascriptExecutor js = (JavascriptExecutor) driver; String jsVariable = (String) js.executeScript("return window.myJavaScriptVariable;"); // Step 3: Print the value of the JavaScript variable System.out.println("JavaScript variable value: " + jsVariable); // Step 4: Close the browser driver.quit(); } } NOTE: Make changes to the path to chrome driver.Output:Console outputConclusionReading JavaScript variables in Selenium WebDriver can be extremely useful for interacting with dynamic data that is managed by JavaScript on the front end. 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