Basic To Advanced Selenium Java Full Course - Session 11 - iFrames, JSExecutor & Headless Browser

Handling iFrames:
iFrame is a web page which is embedded in another web page or an HTML
document embedded inside another HTML document.

Different methods to handle iFrame:
switchTo().frame(index) Switch to a frame using its index
switchTo().frame(name) Switch to a frame using its name
switchTo().frame(id) Switch to a frame using its id
switchTo().frame(WebElement) Switch to a frame which is a web element
switchTo().parentFrame() Switch to the parent frame of the current frame
switchTo().defaultContent() Switch to the main document which contains the iframes

JavaScript Executor:
JavaScript is the preferred language inside the browser to interact with HTML DOM.
JavaScriptExecutor is an Interface that helps to execute JavaScript through Selenium WebDriver.
Methods:
executeScript Executes JavaScript in the context of the currently selected frame or window.
The script fragment provided will be executed as the body of an anonymous function.
executeAsyncScript Executes an asynchronous piece of JavaScript in the context of the currently selected frame or window. With Asynchronous script, your page renders more quickly.
Syntax:

What is Headless browser?
A headless browser is a web browser without a graphical user interface. Headless browsers provide automated control of a web page in an environment similar to popular web browsers, but are executed via a command line interface or using network communication.
Advantages:
Better Performance
Faster Response
Platform Independent
Allows multi tasking
Limitations:
Debugging is not feasible
No user interface