using javascript in a Firefox browser
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I am supporting a web form .net application and I have found out that some of the JavaScript has been deprecated using Internet explorer by using the Internet explorer web developer tools. I have now used the Firefox browser and the application seems to work for what I have tested so far.
Before I place the new version of the application into production, I would like to know what JavaScript features are currently obsolete and/or may be deprecated in the near future.
Due to that fact, would you tell me and/or point me to urls (links) that will tell me what JavaScript items are obsolete and/or deprecated using the Firefox browser?
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I am supporting a web form .net application and I have found out that some of the JavaScript has been deprecated using Internet explorer by using the Internet explorer web developer tools. I have now used the Firefox browser and the application seems to work for what I have tested so far.
Before I place the new version of the application into production, I would like to know what JavaScript features are currently obsolete and/or may be deprecated in the near future.
Due to that fact, would you tell me and/or point me to urls (links) that will tell me what JavaScript items are obsolete and/or deprecated using the Firefox browser?
There can be several answers to this question of yours, however you should consider reading the Can I Use website and trying out what API is supported in which of the browsers. [Can I use... Support tables for HTML5, CSS3, etc](https://caniuse.com/#). This website will tell you about all possible APIs, not just for Firefox but for other major browsers as well; so it can be helpful in many cases. Secondly, you should consider using a framework that supports or at least tends to abstract the underlying browser and supports the features of JavaScript. Thirdly, avoid supporting IE8 or less. You might want to look into Bootstrap for some UI related tasks, [Bootstrap · The most popular HTML, CSS, and JS library in the world.](https://getbootstrap.com) Lastly, why are you using Web Forms? I would recommend trying to migrate the production website to a modern framework. If not possible, then just try to maintain the websites instead of shipping features on top of the same old framework.
The shit I complain about It's like there ain't a cloud in the sky and it's raining out - Eminem ~! Firewall !~
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I am supporting a web form .net application and I have found out that some of the JavaScript has been deprecated using Internet explorer by using the Internet explorer web developer tools. I have now used the Firefox browser and the application seems to work for what I have tested so far.
Before I place the new version of the application into production, I would like to know what JavaScript features are currently obsolete and/or may be deprecated in the near future.
Due to that fact, would you tell me and/or point me to urls (links) that will tell me what JavaScript items are obsolete and/or deprecated using the Firefox browser?
In addition to CanIUse, which is a great resource as suggested by Afzaal, the Mozilla Developer Network (MDN) maintains fantastic documentation including browser support for specific functions and objects. The bottom of pretty much every entry has a browser compatability matrix, and the references generally give great API descriptions and examples. [JavaScript | MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript)
"There are three kinds of lies: lies, damned lies and statistics." - Benjamin Disraeli