CODEWITHSUNDEEP
javascriptselenium
Orfatt Chowdhury
Orfatt Chowdhury

Reputation: 21

What does the argument[0] means in JavascriptExecutor?

So I just did the "How to handle hidden web elements using the JavaScript executor method".

But I am still confused about the method

public static void selectDateByJS(WebDriver driver, WebElement element, String dateVal) {
  JavascriptExecutor js = ((JavascriptExecutor) driver);
  js.executeScript("arguments[0].setAttribute('value', '" + dateVal + "');", element);
}

What does the argument[0] represent? What does it mean?

Upvotes: 0

Views: 1154

Answers (1)

Get Off My Lawn
Get Off My Lawn

Reputation: 36331

arguments[x] is a way to reference the parameters passed to a function/method.

Since arguments is an object you can access the values via their key.

Using this can be helpful when there are no parameters yet parameters have been passed in, for example: infinite arguments.

function myFunction() {
  console.log('all', arguments)
  console.log('first', arguments[0])
  console.log('second', arguments[1])
  console.log('third', arguments[2])
}

myFunction('a', 0, true)

Upvotes: 1

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