Develop Reference

Do we have any generic function to check if page has completely loaded in Selenium

I am trying to check if web page is loaded completed or not (i.e. checking that all the control is loaded) in selenium.
I tried below code:
new WebDriverWait(firefoxDriver, pageLoadTimeout).until(
webDriver -> ((JavascriptExecutor) webDriver).executeScript("return document.readyState").equals("complete"));
but even if page is loading above code does not wait.
I know that I can check for particular element to check if its visible/clickable etc but I am looking for some generic solution

As you mentioned if there is any generic function to check if the page has completely loaded through Selenium the answer is No.
First let us have a look at your code trial which is as follows :
new WebDriverWait(firefoxDriver, pageLoadTimeout).until(webDriver -> ((JavascriptExecutor) webDriver).executeScript("return document.readyState").equals("complete"));
The parameter pageLoadTimeout in the above line of code doesn't really reseambles to actual pageLoadTimeout().
Here you can find a detailed discussion of pageLoadTimeout in Selenium not working
Now as your usecase relates to page being completely loaded you can use the pageLoadStrategy() set to normal [ the supported values being none, eager or normal ] using either through an instance of DesiredCapabilities Class or ChromeOptions Class as follows :
Using DesiredCapabilities Class :
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.remote.DesiredCapabilities;
public class myDemo
{
public static void main(String[] args) throws Exception
{
System.setProperty("webdriver.gecko.driver", "C:\\Utility\\BrowserDrivers\\geckodriver.exe");
DesiredCapabilities dcap = new DesiredCapabilities();
dcap.setCapability("pageLoadStrategy", "normal");
FirefoxOptions opt = new FirefoxOptions();
opt.merge(dcap);
WebDriver driver = new FirefoxDriver(opt);
driver.get("https://www.google.com/");
System.out.println(driver.getTitle());
driver.quit();
}
}
Using ChromeOptions Class :
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.PageLoadStrategy;
public class myDemo
{
public static void main(String[] args) throws Exception
{
System.setProperty("webdriver.gecko.driver", "C:\\Utility\\BrowserDrivers\\geckodriver.exe");
FirefoxOptions opt = new FirefoxOptions();
opt.setPageLoadStrategy(PageLoadStrategy.NORMAL);
WebDriver driver = new FirefoxDriver(opt);
driver.get("https://www.google.com/");
System.out.println(driver.getTitle());
driver.quit();
}
}
You can find a detailed discussion in Page load strategy for Chrome driver (Updated till Selenium v3.12.0)
Now setting PageLoadStrategy to NORMAL and your code trial both ensures that the Browser Client have (i.e. the Web Browser) have attained 'document.readyState' equal to "complete". Once this condition is fulfilled Selenium performs the next line of code.
You can find a detailed discussion in Selenium IE WebDriver only works while debugging
But the Browser Client attaining 'document.readyState' equal to "complete" still doesn't guarantees that all the JavaScript and Ajax Calls have completed.
To wait for the all the JavaScript and Ajax Calls to complete you can write a function as follows :
public void WaitForAjax2Complete() throws InterruptedException
{
while (true)
{
if ((Boolean) ((JavascriptExecutor)driver).executeScript("return jQuery.active == 0")){
break;
}
Thread.sleep(100);
}
}
You can find a detailed discussion in Wait for ajax request to complete - selenium webdriver
Now, the above two approaches through PageLoadStrategy and "return jQuery.active == 0" looks to be waiting for indefinite events. So for a definite wait you can induce WebDriverWait inconjunction with ExpectedConditions set to titleContains() method which will ensure that the Page Title (i.e. the Web Page) is visible and assume the all the elements are also visible as follows :
driver.get("https://www.google.com/");
new WebDriverWait(driver, 10).until(ExpectedConditions.titleContains("partial_title_of_application_under_test"));
System.out.println(driver.getTitle());
driver.quit();
Now, at times it is possible though the Page Title will match your Application Title still the desired element you want to interact haven't completed loading. So a more granular approach would be to induce WebDriverWait inconjunction with ExpectedConditions set to visibilityOfElementLocated() method which will make your program wait for the desired element to be visible as follows :
driver.get("https://www.google.com/");
WebElement ele = new WebDriverWait(driver, 10).until(ExpectedConditions.visibilityOfElementLocated(By.xpath("xpath_of_the_desired_element")));
System.out.println(ele.getText());
driver.quit();
References
You can find a couple of relevant detailed discussions in:
Selenium IE WebDriver only works while debugging
Selenium how to manage wait for page load?

I use selenium too and I had the same problem, to fix that I just wait also for the jQuery to load.
So if you have the same issue try this also
((Long) ((JavascriptExecutor) browser).executeScript("return jQuery.active") == 0);
You can wrap both function in a method and check until both page and jQuery is loaded

Implement this, Its working for many of us including me. It includes Web Page wait on JavaScript, Angular, JQuery if its there.
If your Application is containing Javascript & JQuery you can write code for only those,
By define it in single method and you can Call it anywhere:
// Wait for jQuery to load
{
ExpectedCondition<Boolean> jQueryLoad = driver -> ((Long) ((JavascriptExecutor) driver).executeScript("return jQuery.active") == 0);
boolean jqueryReady = (Boolean) js.executeScript("return jQuery.active==0");
if (!jqueryReady) {
// System.out.println("JQuery is NOT Ready!");
wait.until(jQueryLoad);
}
wait.until(jQueryLoad);
}
// Wait for ANGULAR to load
{
String angularReadyScript = "return angular.element(document).injector().get('$http').pendingRequests.length === 0";
ExpectedCondition<Boolean> angularLoad = driver -> Boolean.valueOf(((JavascriptExecutor) driver).executeScript(angularReadyScript).toString());
boolean angularReady = Boolean.valueOf(js.executeScript(angularReadyScript).toString());
if (!angularReady) {
// System.out.println("ANGULAR is NOT Ready!");
wait.until(angularLoad);
}
}
// Wait for Javascript to load
{
ExpectedCondition<Boolean> jsLoad = driver -> ((JavascriptExecutor) driver).executeScript("return document.readyState").toString()
.equals("complete");
boolean jsReady = (Boolean) js.executeScript("return document.readyState").toString().equals("complete");
// Wait Javascript until it is Ready!
if (!jsReady) {
// System.out.println("JS in NOT Ready!");
wait.until(jsLoad);
}
}
Click here for Reference Link
Let me know if you stuck anywhere by implementing.
It overcomes the use of Thread or Explicit Wait.

public static void waitForPageToLoad(long timeOutInSeconds) {
ExpectedCondition<Boolean> expectation = new ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("complete");
}
};
try {
System.out.println("Waiting for page to load...");
WebDriverWait wait = new WebDriverWait(Driver.getDriver(), timeOutInSeconds);
wait.until(expectation);
} catch (Throwable error) {
System.out.println(
"Timeout waiting for Page Load Request to complete after " + timeOutInSeconds + " seconds");
}
}
Try this method

This works for me well with dynamically rendered websites:
Wait for complete page to load
WebDriverWait wait = new WebDriverWait(driver, 50);
wait.until((ExpectedCondition<Boolean>) wd -> ((JavascriptExecutor) wd).executeScript("return document.readyState").equals("complete"));
Make another implicit wait with a dummy condition which would always fail
try {
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//*[contains(text(),'" + "This text will always fail :)" + "')]"))); // condition you are certain won't be true
}
catch (TimeoutException te) {
}
Finally, instead of getting the html source - which would in most of one page applications would give you a different result , pull the outerhtml of the first html tag
String script = "return document.getElementsByTagName(\"html\")[0].outerHTML;";
content = ((JavascriptExecutor) driver).executeScript(script).toString();

There is a easy way to do it. When you first request the state via javascript, it tells you that the page is complete, but after that it enters the state loading. The first complete state was the initial page!
So my proposal is to check for a complete state after a loading state. Check this code in PHP, easily translatable to another language.
$prevStatus = '';
$checkStatus = function ($driver) use (&$prevStatus){
$status = $driver->executeScript("return document.readyState");
if ($prevStatus=='' && $status=='loading'){
//save the previous status and continue waiting
$prevStatus = $status;
return false;
}
if ($prevStatus=='loading' && $status=='complete'){
//loading -> complete, stop waiting, it is finish!
return true;
}
//continue waiting
return false;
};
$this->driver->wait(20, 150)->until($checkStatus);
Checking for a element to be present also works well, but you need to make sure that this element is only present in the destination page.

Something like this should work (please excuse the python in a java answer):
idle = driver.execute_async_script("""
window.requestIdleCallback(() => {
arguments[0](true)
})
""")
This should block until the event loop is idle which means all assets should be loaded.

How to return WebElement having particular CSS property using JavascriptExecutor?

I am working on a scenario where I need to find a WebElement based on its CSS property, like background-color.
I have created the JQuery to find the element as below and it finds the webelement correctly using firefox console.
$('.search-bar-submit').each(function() {
return $(this).css('background-color') == '#fdd922';
});
Hence, I wrote the code to find this WebElement, i.e. searchbox and then tried to click it.
driver.get("http://www.flipkart.com/");
driver.findElement(By.id("fk-top-search-box")).sendKeys("iphone");
String query ="$('.search-bar-submit').each(function() { "
+ "return $(this).css('background-color') == '#fdd922'; });";
WebElement searchbox = (WebElement) ((JavascriptExecutor)driver).executeScript(query);
searchbox.click();
When I run the program, it gives me Exception in thread "main" java.lang.NullPointerException on line searchbox.click();
Can anyone help me out find the searchbox using JavascriptExecutor and then click on it? Am I missing something silly here?
Any help is appreciated. Thanks in Advance.

WebElement searchbox = (WebElement)
((JavascriptExecutor)driver).executeScript(query);
The above code calls the function but doesn't do anything with the result, ie. it doesn't return it to the caller.
Add return in the script to return the webelement to the selenium script(webdriver)
return $('.search-bar-submit').each(function() {
return $(this).css('background-color') == '#fdd922';
});
The return type is List<WebElement>so typecast it to List if you typecast it to it will throw an ClassCastException as arraylist cannot be cast to a webelement
Code:
List<WebElement> searchbox = (List<WebElement>) ((JavascriptExecutor)driver).executeScript(query);
for(int i=0;i<searchbox.size();i++){
searchbox.get(i).click();
}
EDIT:
The code was not working in firefox because the firefox browser returns a json object of the webelement.Selenium replaced its uses of org.json with gson.So it is not able to understand the response recieved
Screenshot taken from chrome
Screenshot taken from firefox
Solution
We are using Jquery get function to retrieve the DOM Elements matched by the jquery object
$('.search-bar-submit').each(function() {
return $(this).css('background-color') == '#fdd922';
}).get(0);
Code
public class jquerytest
{
public static void main(String[] args) throws Exception {
WebDriver driver = new FirefoxDriver();
driver.get("https://www.flipkart.com");
driver.findElement(By.id("fk-top-search-box")).sendKeys("iphone");
String query ="return $('.search-bar-submit').each(function() { "
+ "return $(this).css('background-color') == '#fdd922'; }).get(0);";
Thread.sleep(5000);//wait till page loads replace thread.sleep by any waits
WebElement searchbox = (WebElement) ((JavascriptExecutor)driver).executeScript(query);
searchbox.click();
}
}
I have tested the above code on both chrome and firefox it works perfectly
Hope this helps you.Kindly get back if you have any queries

I ran the following code and it all works fine. Your jquery works as well (I love the little message they print to console in the dev view hahaha).
driver.get("http://www.flipkart.com/");
WebElement in = driver.findElement(By.id("fk-top-search-box"));
in.sendKeys("iphone");
WebElement thing = driver.findElement(By.className("fk-font-bold"));
thing.click();
I believe there's a problem with your executeScript and it should be as follows.
System.out.println(((JavascriptExecutor)driver).executeScript(query, driver));
Normally the format for my calling javascript is as follows, this would be to remove the windowed attribute so that a hyperlink would open in the same tab:
String Href = linkObject.getAttribute("href");//located the hyperlink for the documents
Href = Href.substring(0, Href.length()-10)+")";//I remove ",'windowed'" from the link to stop it opening in a new window and having to change the scripts focus
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("return arguments[0].href = \""+Href + "\"", linkObject););
But then you're getting JSON back and WebDriver can't understand that. See the following link for more information on that.
http://grokbase.com/t/gg/webdriver/12ckjcthg8/executing-javascript-that-returns-json-how-best-to-handle
Might I suggest this alternative, it gives the background-color in rgba format:
WebElement pain = driver.findElement(By.className("search-bar-submit");
pain.getCssValue("background-color");

parse HTML javascript to JAVA using selenium

I am trying to get the value of h1 as a string using selenium.
Here is the HTML javascript-
<script type="text/javascript">
$(window).load(function() {
var $windowHeight = $(window).height() -12;
$("#top").height($windowHeight);
$('h1').css({
'margin-top' : (($windowHeight) - $('h1').outerHeight())/2,
'margin-bottom' : (($windowHeight) - $('h1').outerHeight())/2,
'opacity' : '1.0',
'filter' : 'alpha(opacity = 100)',
});
$("#container").click(function(){
$("html, body").animate({
scrollTop: $windowHeight + 50
}, 1500);
})
});
$(window).on("debouncedresize", function( event ) {
var $windowHeight = $(window).height() -12;
$("#top").height($windowHeight);
$('h1').css({
'margin-top' : (($windowHeight) - $('h1').outerHeight())/2,
'margin-bottom' : (($windowHeight) - $('h1').outerHeight())/2
});
});
</script>
Here is what I've written in JAVA-
WebDriver driver = new FirefoxDriver();
driver.get("view-source:http://websitename.com/");
Thread.sleep(3000);
JavascriptExecutor js = null;
if (driver instanceof JavascriptExecutor) {
js = (JavascriptExecutor)driver;
}
js.executeScript("h1");
Not sure if I should be using JavascriptExecutor in the first place. I'd appreciate any help. Thanks

h1 is a tag on the page. Why do you try accessing it using JavascriptExecutor?
If you want to get text of the header h1 simply use such code
String text = driver.findElement(By.css("h1")).getText();
If you want to get an attribute of the tag use this code instead
String attr= driver.findElement(By.css("h1")).getAttribute(<attr-name>);

It works now! I was supposed to get the source of the page by using driver.getPageSource(); Not by driver.get("view-source:websitename.com/"). Stupid me. Thanks for the help! :)

How to click an element in Selenium WebDriver using JavaScript?

I have the following HTML:
<button name="btnG" class="gbqfb" aria-label="Google Search" id="gbqfb"><span class="gbqfi"></span></button>
My following code for clicking "Google Search" button is working well using Java in WebDriver.
driver.findElement(By.id("gbqfb")).click();
I want to use JavaScript with WebDriver to click the button. How can I do it?

Executing a click via JavaScript has some behaviors of which you should be aware. If for example, the code bound to the onclick event of your element invokes window.alert(), you may find your Selenium code hanging, depending on the implementation of the browser driver. That said, you can use the JavascriptExecutor class to do this. My solution differs from others proposed, however, in that you can still use the WebDriver methods for locating the elements.
// Assume driver is a valid WebDriver instance that
// has been properly instantiated elsewhere.
WebElement element = driver.findElement(By.id("gbqfd"));
JavascriptExecutor executor = (JavascriptExecutor)driver;
executor.executeScript("arguments[0].click();", element);
You should also note that you might be better off using the click() method of the WebElement interface, but disabling native events before instantiating your driver. This would accomplish the same goal (with the same potential limitations), but not force you to write and maintain your own JavaScript.

Here is the code using JavaScript to click the button in WebDriver:
WebDriver driver = new FirefoxDriver();
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("document.getElementById('gbqfb').click();");

I know this isn't JavaScript, but you can also physically use the mouse-click to click a dynamic Javascript anchor:
public static void mouseClickByLocator( String cssLocator ) {
String locator = cssLocator;
WebElement el = driver.findElement( By.cssSelector( locator ) );
Actions builder = new Actions(driver);
builder.moveToElement( el ).click( el );
builder.perform();
}

Not sure OP answer was really answered.
var driver = new webdriver.Builder().usingServer('serverAddress').withCapabilities({'browserName': 'firefox'}).build();
driver.get('http://www.google.com');
driver.findElement(webdriver.By.id('gbqfb')).click();

You can't use WebDriver to do it in JavaScript, as WebDriver is a Java tool. However, you can execute JavaScript from Java using WebDriver, and you could call some JavaScript code that clicks a particular button.
WebDriver driver; // Assigned elsewhere
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("window.document.getElementById('gbqfb').click()");

By XPath: inspect the element on target page, copy Xpath and use the below script:worked for me.
WebElement nameInputField = driver.findElement(By.xpath("html/body/div[6]/div[1]/div[3]/div/div/div[1]/div[3]/ul/li[4]/a"));
JavascriptExecutor executor = (JavascriptExecutor)driver;
executor.executeScript("arguments[0].click();", nameInputField);

const {Builder, By, Key, util} = require('selenium-webdriver')
// FUNÇÃO PARA PAUSA
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function example() {
// chrome
let driver = await new Builder().forBrowser("firefox").build()
await driver.get('https://www.google.com.br')
// await driver.findElement(By.name('q')).sendKeys('Selenium' ,Key.RETURN)
await sleep(2000)
await driver.findElement(By.name('q')).sendKeys('Selenium')
await sleep(2000)
// CLICAR
driver.findElement(By.name('btnK')).click()
}
example()
Com essas últimas linhas, você pode clicar !

This code will perform the click operation on the WebElement "we" after 100 ms:
WebDriver driver = new FirefoxDriver();
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("var elem=arguments[0]; setTimeout(function() {elem.click();}, 100)", we);

Another easiest solution is to use Key.RETUEN
Click here for solution in detail
driver.findElement(By.name("q")).sendKeys("Selenium Tutorial", Key.RETURN);

I think some parts of above codes has changed a little, I'm learning Selenium with JavaScript and I founded 2 options to click
To start we need to find the element we want to click, could be By (id, class, etc.), here is how, https://www.youtube.com/watch?v=BQ-9e13kJ58&list=PLZMWkkQEwOPl0udc9Dap2NbEAkwkdOTV3.
Right down are the 2 ways that I'm talking about:
FIRST Method:
await driver.findElement(By.id("sampletodotext")).sendKeys("Learning Selenium", Key.RETURN);
- Here we found an empty field by it's Id, and then we write "Learning Selenium" in this field with the sendKeys().
- Key.RETURN: Simulate the person pressing the ENTER key in keyboard.
SECOND Method:
await driver.findElement(By.id("sampletodotext")).sendKeys("Learn Selenium");
await driver.findElement(By.id("addbutton")).click().finally();
- The difference here, is we switched the Key.RETURN of the FIRST method, for the entire second line, in the SECOND method.

Use the code below, which worked for me:
public void sendKeysJavascript() {
String file = getfile();
WebElement browser = driver.findElement(By.xpath("//input[#type='file']"));
JavascriptExecutor js = (JavascriptExecutor) driver;
actionClass.waitforSeconds(5);
js.executeScript("arguments[0].click();", browser);
actionClass.waitforSeconds(1);
browser.sendKeys(file);
}
String getfile() {
return new File("./src/main/resources/TestData/example.pdf").getAbsolutePath();
}
Don't forget to add wait time before the js click action. It is mandatory

Cross browser testing java scripts
public class MultipleBrowser {
public WebDriver driver= null;
String browser="mozilla";
String url="https://www.omnicard.com";
#BeforeMethod
public void LaunchBrowser() {
if(browser.equalsIgnoreCase("mozilla"))
driver= new FirefoxDriver();
else if(browser.equalsIgnoreCase("safari"))
driver= new SafariDriver();
else if(browser.equalsIgnoreCase("chrome"))
//System.setProperty("webdriver.chrome.driver","/Users/mhossain/Desktop/chromedriver");
driver= new ChromeDriver();
driver.manage().timeouts().implicitlyWait(4, TimeUnit.SECONDS);
driver.navigate().to(url);
}
}
but when you want to run firefox you need to chrome path disable, otherwise browser will launch but application may not.(try both way) .

How to use JavaScript with Selenium WebDriver Java

I want to use JavaScript with WebDriver (Selenium 2) using Java.
I've followed some a guide and on Getting Started page: there is an instruction at 1st line to run as:
$ ./go webdriverjs
My question: From which folder/location the command mentioned above will be run/executed?

Based on your previous questions, I suppose you want to run JavaScript snippets from Java's WebDriver. Please correct me if I'm wrong.
The WebDriverJs is actually "just" another WebDriver language binding (you can write your tests in Java, C#, Ruby, Python, JS and possibly even more languages as of now). This one, particularly, is JavaScript, and allows you therefore to write tests in JavaScript.
If you want to run JavaScript code in Java WebDriver, do this instead:
WebDriver driver = new AnyDriverYouWant();
if (driver instanceof JavascriptExecutor) {
((JavascriptExecutor)driver).executeScript("yourScript();");
} else {
throw new IllegalStateException("This driver does not support JavaScript!");
}
I like to do this, also:
WebDriver driver = new AnyDriverYouWant();
JavascriptExecutor js;
if (driver instanceof JavascriptExecutor) {
js = (JavascriptExecutor)driver;
} // else throw...
// later on...
js.executeScript("return document.getElementById('someId');");
You can find more documentation on this here, in the documenation, or, preferably, in the JavaDocs of JavascriptExecutor.
The executeScript() takes function calls and raw JS, too. You can return a value from it and you can pass lots of complicated arguments to it, some random examples:
1.
// returns the right WebElement
// it's the same as driver.findElement(By.id("someId"))
js.executeScript("return document.getElementById('someId');");
// draws a border around WebElement
WebElement element = driver.findElement(By.anything("tada"));
js.executeScript("arguments[0].style.border='3px solid red'", element);
// changes all input elements on the page to radio buttons
js.executeScript(
"var inputs = document.getElementsByTagName('input');" +
"for(var i = 0; i < inputs.length; i++) { " +
" inputs[i].type = 'radio';" +
"}" );

JavaScript With Selenium WebDriver
Selenium is one of the most popular automated testing suites.
Selenium is designed in a way to support and encourage automation testing of functional aspects of web based applications and a wide range of browsers and platforms.
public static WebDriver driver;
public static void main(String[] args) {
driver = new FirefoxDriver(); // This opens a window
String url = "----";
/*driver.findElement(By.id("username")).sendKeys("yashwanth.m");
driver.findElement(By.name("j_password")).sendKeys("yashwanth#123");*/
JavascriptExecutor jse = (JavascriptExecutor) driver;
if (jse instanceof WebDriver) {
//Launching the browser application
jse.executeScript("window.location = \'"+url+"\'");
jse.executeScript("document.getElementById('username').value = \"yash\";");
// Tag having name then
driver.findElement(By.xpath(".//input[#name='j_password']")).sendKeys("admin");
//Opend Site and click on some links. then you can apply go(-1)--> back forword(-1)--> front.
//Refresheing the web-site. driver.navigate().refresh();
jse.executeScript("window.history.go(0)");
jse.executeScript("window.history.go(-2)");
jse.executeScript("window.history.forward(-2)");
String title = (String)jse.executeScript("return document.title");
System.out.println(" Title Of site : "+title);
String domain = (String)jse.executeScript("return document.domain");
System.out.println("Web Site Domain-Name : "+domain);
// To get all NodeList[1052] document.querySelectorAll('*'); or document.all
jse.executeAsyncScript("document.getElementsByTagName('*')");
String error=(String) jse.executeScript("return window.jsErrors");
System.out.println("Windowerrors : "+error);
System.out.println("To Find the input tag position from top");
ArrayList<?> al = (ArrayList<?>) jse.executeScript(
"var source = [];"+
"var inputs = document.getElementsByTagName('input');"+
"for(var i = 0; i < inputs.length; i++) { " +
" source[i] = inputs[i].offsetParent.offsetTop" + //" inputs[i].type = 'radio';"
"}"+
"return source"
);//inputs[i].offsetParent.offsetTop inputs[i].type
System.out.println("next");
System.out.println("array : "+al);
// (CTRL + a) to access keyboard keys. org.openqa.selenium.Keys
Keys k = null;
String selectAll = Keys.chord(Keys.CONTROL, "a");
WebElement body = driver.findElement(By.tagName("body"));
body.sendKeys(selectAll);
// Search for text in Site. Gets all ViewSource content and checks their.
if (driver.getPageSource().contains("login")) {
System.out.println("Text present in Web Site");
}
Long clent_height = (Long) jse.executeScript("return document.body.clientHeight");
System.out.println("Client Body Height : "+clent_height);
// using selenium we con only execute script but not JS-functions.
}
driver.quit(); // to close browser
}
To Execute User-Functions, Writing JS in to a file and reading as String and executing it to easily use.
Scanner sc = new Scanner(new FileInputStream(new File("JsFile.txt")));
String js_TxtFile = "";
while (sc.hasNext()) {
String[] s = sc.next().split("\r\n");
for (int i = 0; i < s.length; i++) {
js_TxtFile += s[i];
js_TxtFile += " ";
}
}
String title = (String) jse.executeScript(js_TxtFile);
System.out.println("Title : "+title);
document.title & document.getElementById() is a property/method available in Browsers.
JsFile.txt
var title = getTitle();
return title;
function getTitle() {
return document.title;
}

You can also try clicking by JavaScript:
WebElement button = driver.findElement(By.id("someid"));
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("arguments[0].click();", button);
Also you can use jquery. In worst cases, for stubborn pages it may be necessary to do clicks by custom EXE application. But try the obvious solutions first.

I didn't see how to add parameters to the method call, it took me a while to find it, so I add it here.
How to pass parameters in (to the javascript function), use "arguments[0]" as the parameter place and then set the parameter as input parameter in the executeScript function.
driver.executeScript("function(arguments[0]);","parameter to send in");

If you want to read text of any element using javascript executor, you can do something like following code:
WebElement ele = driver.findElement(By.xpath("//div[#class='infaCompositeViewTitle']"));
String assets = (String) js.executeScript("return arguments[0].getElementsByTagName('span')[1].textContent;", ele);
In this example, I have following HTML fragment and I am reading "156".
<div class="infaCompositeViewTitle">
<span>All Assets</span>
<span>156</span>
</div>

Following code worked for me:
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.springframework.beans.factory.annotation.Autowired;
public class SomeClass {
#Autowired
private WebDriver driver;
public void LogInSuperAdmin() {
((JavascriptExecutor) driver).executeScript("console.log('Test test');");
}
}

I had a similar situation and solved it like this:
WebElement webElement = driver.findElement(By.xpath(""));
webElement.sendKeys(Keys.TAB);
webElement.sendKeys(Keys.ENTER);

You need to run this command in the top-level directory of a Selenium SVN repository checkout.