When utilizing the executeScript() method from the JavascriptExecutor interface in Selenium WebDriver, what do arguments[0] and arguments[1] signify? Additionally, what is the function of arguments[0] in the following code snippet.
javaScriptExecutor.executeScript("arguments[0].click()", webElement);
The executeScript() function from the JavascriptExecutor Interface has the capability to pass and use multiple arguments like arguments[0], arguments[1], and so on.
To make the code snippet
javaScriptExecutor.executeScript("arguments[0].click()", webElement);executeScript() method assigns the element's reference as arguments[0], specifies the action (in this case click()), and then expects the reference to be provided subsequently.
WebElement webElement = driver.findElement(By.xpath("xpath_element"));
JavascriptExecutor javaScriptExecutor = (JavascriptExecutor)driver;
javaScriptExecutor.executeScript("arguments[0].click()", webElement);
An example of using executeScript() with multiple arguments[] is demonstrated below:
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("arguments[0].setAttribute('style', arguments[1])", driver.findElement(By.xpath("//input[@type='file']")), "0");
In this example:
driver.findElement(By.xpath("//input[@type='file']A related discussion can be found at What is arguments[0] while invoking execute_script() method through WebDriver instance through Selenium and Python?
When using the executeScript API, you can use it like this:
executeScript(script/function, arg1, arg2, arg3, ...)The initial argument can be a JavaScript snippet or a JavaScript function. If it is a snippet, it will be wrapped into a function within executeScript.
The following arguments are the parameters for the JavaScript function that corresponds to the first argument.
arguments is a built-in feature in JavaScript functions. It allows you to access the actual arguments passed when calling a function. Check out the example below for clarification:
test('tom', 12, 'male', '175cm') // calling the test function
function test(name, age) {
console.log(name); // tom
console.log(age); // 12
console.log(arguments); // ['tom', 12, 'male', '175cm']
console.log(arguments[0]); // same as name parameter: tom
console.log(arguments[1]); // same as age parameter: 12
console.log(arguments[2]); // male
console.log(arguments[3]); // 175cm
}
For more information on JavaScript Function.arguments
The code seems to be executing within the scope of a nameless function that is receiving the output of driver.findElement(locator).
Therefore, you can retrieve the first argument of the anonymous function using arguments[0], and similarly for arguments[1].
Check out this demonstration on how to utilize arguments[0] and arguments[2]:
objIE.RunScript "arguments[0].content = arguments[1]", Array(objIE.GetElementById("sqlvalue1"), Sheets("SheetName").Cell("U2").Data)
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