Javascript in Selenium Webdriver and Different usage

Hello, Welcome to Selenium Tutorials in this post we will see how we can introduce Javascript in Selenium Webdriver and what are the usage?

What is JavaScript

JavaScript is one of the programming languages of the Web.

All modern HTML pages are using JavaScript.

For more details, you can refer Wikipedia – JavaScript

Use of Javascript in Selenium Webdriver

We have used Java in our script and we implemented almost all features but some features we can’t handle or implement using Java so we need scripting language as well which can control server side or client side

Implement JavaScript in Selenium Webdriver

To execute JavaScript in our webdriver script we do not have to write the separate code we have one predefined interface available.

JavascriptExecutor is an Interface which is available in package org.openqa.selenium.JavascriptExecutor;

Inside this Interface we have some predefined method called executeScript()- so whatever script you will pass as a String  It will be executed by JavascriptExecutor.

Note- This is the most common question in the interview that how to type in Selenium without using the sendKeys method.

Let us implement Javascript in Selenium Webdriver

Program 1- How to type in Selenium without using sendKeys() method

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.firefox.FirefoxDriver;

public class TestFirefox {

public static void main(String[] args) throws InterruptedException {

// Open Firefox browser
FirefoxDriver driver=new FirefoxDriver();

// Maximize the window
driver.manage().window().maximize();

// Open applicatiion
driver.get("enter your application URL");

// This will execute JavaScript in your script
((JavascriptExecutor)driver).executeScript("document.getElementById('some id').value='mukesh';");

}

}

Program 2- How to click in Selenium if button or radio button is disable

package seleniumday1;

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.firefox.FirefoxDriver;

public class TestFirefox {

public static void main(String[] args) throws InterruptedException {

// Open Firefox browser
FirefoxDriver driver=new FirefoxDriver();

// Maximize the window
driver.manage().window().maximize();

// Open applicatiion
driver.get("enter your application URL");

// This will execute JavaScript in your script
((JavascriptExecutor)driver).executeScript("document.getElementById('enter your element id').click();");

}

}

Program 3- How to uncheck checkbox in Selenium if checkbox is disable

package seleniumday1;

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.firefox.FirefoxDriver;

public class TestFirefox {

public static void main(String[] args) throws InterruptedException {

// Open Firefox browser
FirefoxDriver driver=new FirefoxDriver();

// Maximize the window
driver.manage().window().maximize();

// Open applicatiion
driver.get("enter your application URL");

// This will execute JavaScript in your script
((JavascriptExecutor)driver).executeScript("document.getElementById('enter element id').checked=false;");
}

}

 Please comment below if you are facing any issue. 

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Happy Testing