What is window alert in JavaScript?

window.alert ("This is an alert."); alert ("This is an alert too!"); These boxes are commonly found in the catch blocks of try catch statements to let a user know that a problem happened in a program. Javascript confirm boxes display a choice of two options to the user.

How do I specify a JavaScript alert box?

There are two different methods to specify a Javascript alert box: by using window.alert () or alert (). These methods do the same thing; which one you use depends on your local style guide or your personal preferences. window.alert ("This is an alert."); alert ("This is an alert too!");

Is there a way to do a jsref alert in JavaScript?

But if there is a way to do it in JavaScript, please answer! alert ("Alert"); should work. You can test it out here: w3schools.com/jsref/tryit.asp?filename=tryjsref_alert I just did, on win 10 and it works fine. window.alert is the browser function only. You can execute it in browser environment only.

Do JavaScript popup windows and alert boxes have a purpose?

Javascript popup windows and alert boxes do have a purpose. The flurries of irritating boxes we so often see on the web happen because programmers don’t always create them properly, turning them into intrusive nuisances rather than the helpful notifications they’re supposed to be.