Are the alert and confirm functions built in to JavaScript, or are they part of the DOM?

Bonus points if you can refer me to a reference that will allow me to easily tell what functions are directly built in to JavaScript.

Are the alert and confirm functions built in to JavaScript, or are they part of the DOM?

Bonus points if you can refer me to a reference that will allow me to easily tell what functions are directly built in to JavaScript.

• javascript

• 1 All DOM level 0: developer.mozilla/Special:Tags?tag=DOM_0 – Matt Ball Commented Apr 15, 2012 at 21:39
• 4 ecma-international/publications/files/ECMA-ST/ECMA-262.pdf contains everything about JavaScript itself that is standardized. Enjoy reading it (not ironic, it is actually interesting) – ThiefMaster Commented Apr 15, 2012 at 21:39
• What exactly do you need? Dialog functions are senseless in environments like nodejs. But they are present in e.g. Adobe's scripting. – kirilloid Commented Apr 15, 2012 at 21:41
• Actually, I'm authoring a paper meant to introduce other developers to the JavaScript language. I understand that some functions, such as string.join, are part of the language. Some other functions, such as document.getElementById, are part of the DOM. I want to know where alert and confirm fit into the picture. – Vivian River Commented Apr 15, 2012 at 21:43
• 1 @RiceFlourCookies The DOM is only a part of the browser object model. In short, you have the JavaScript language on one side, and the browser object model on the other side, which includes the DOM and dozens of other technologies (like Ajax, for instance). – Šime Vidas Commented Apr 15, 2012 at 21:46

3 Answers 3

They are part of what is monly referred to as DOM level 0 which isn't part of any standard.

MDN has a good JavaScript reference. It doesn't include objects that aren't part of core JS (although other sections on the site do cover DOM and other APIs).

These functions are usually only available in a browser environment, but they are not part of any standard , this is referred to as DOM level 0.

https://developer.mozilla/en-US/docs/Web/API/Window/alert

To get a better idea of what the difference is between javascript and the DOM, read this article https://developer.mozilla/en-US/docs/Web/JavaScript/JavaScript_technologies_overview

alert is one of the user prompts defined in the WHATWG HTML specification