Which command is used to handle alert in Selenium?

What is the difference between alert and popup?

Which one is a good fit for my needs?

The difference between the two is subtle, though some people think they are used for different things. You have to be a little careful what you use and why you use it. A big part of this question is the and why part.

I'll address how and when to use alerts in a second. First, let's look at your options when and why you should use each.

Popups vs. Alerts Popup - Displays the message over any current web page. Alert - Will wait for user action (clicking the OK button, selecting a specific choice, etc.) Popup is a generic term, since there are various types of popups. Some types of alerts are popups, but not all alerts are popup messages. There is some level of confusion and misuse.

If your popup has an OK or close option (as you get when you click the X on your desktop, for example), that is actually a confirmation box. It means you have the option to either close the popup or just accept its message. However, if you do just accept its message, the action will still be completed (if that is what you were trying to complete). You don't need to know the difference between the two to understand them.

Alert works similarly. You have the option of closing the alert without having to click the Ok or Cancel buttons.

Popups and alerts can co-exist in many browsers. Often, with browser extensions, websites will hide alerts and just present the message in a popup. These usually work, but require a bit of testing and experimentation to find the settings and settings the popups will show properly.

I'll cover where you can use each in a minute, but first, let's quickly cover other terminology and where they live in your browser. Popups & Pop-ups. Most websites that use popups will do so by adding an overlay, a small box with the message, over your current page.

What is alert class in Selenium?

How it is different from the other element attributes

I am trying to understand Selenium and I came across a topic alert or confirm box.

Here are the definitions : The HTML-5 definition is: An interactive element that has the potential to start a new browser window; the user can close that window using the same action as closing a book. So as per the above definition, we can say that. It is an interface component which opens a new Browser Window on clicking, if it is opened in some other Browser like Chrome then that Window will not be considered alert or confirm. It is not sure that how they do that as we have limited knowledge in this regard.

I wrote a program in which I have 3 buttons and textbox. I have included those buttons and the text box in my program. But when I have selected 'Submit' button only, the program is not executing the alert or confirm statement I have written. Please let me know what is happening there and what I am missing out.

This could be a problem with the page. It could be coded or broken. For example, there might be an event listener on "submit" that is preventing it from executing. Maybe there's one for submit, which is why it is not working. Maybe a different event listener exists on "submit", but it is not firing because it has been disabled somehow. Or it could be an input field on the page that intercepts the click before reaching the "submit" button.

So to summarize the problem. You want something that is going to fire that fires an alert to let the user know some action occurred. For instance, "Hey, do you want to save the changes" then a Yes/No reply box (alert) comes up. However, it is not working. We suspect an event listener to be preventing it, but we do not know for sure.

It sounds like you're doing things a bit differently to the normal manner in which things are done. You need to make sure any alert or confirm box that you get is an immediate result of what happened, and nothing else.