Is there a method available to identify browser compatibility problems within my JavaScript code?

Currently, I am working on a Javascript library and I am looking for a tool that can help me with the following:

  1. Detect any methods in my code that may be incompatible with certain browsers
  2. Show me which browsers are compatible with my code

I have been searching for such a tool but haven't had much luck. Does something like this even exist?




Prior Research:
  • I came across http://caniuse.com for checking specific methods, but it doesn't solve all my issues.
  • I have gone through several posts on browser compatibility on Stack Overflow, but haven't found anything relevant to my requirements.
  • I have also looked into tools like Sauce Labs for running unit tests in different browsers, but that's not exactly what I need.
javascriptcross-browserbrowser-support

Answer №2

If you're looking to ensure compatibility with different browsers, consider using eslint-plugin-compat, a handy plugin for the ESlint linting utility. You can also utilize Browserlist to specify which browsers you wish to support.

https://i.sstatic.net/VXsbS.gif

The installation process is straightforward. Simply install eslint and the plugin as follows:

npm install --save-dev eslint-plugin-compat

or

yarn add --dev eslint eslint-plugin-compat

Don't forget to set up an ESlint configuration file:

// .eslintrc
{
  "extends": ["plugin:compat/recommended"]
}

Add the targeted browsers in your package.json file:

// sample configuration (package.json)
{
  // ...
  "browserslist": ["last 2 Chrome versions", "IE 11"],
}

Finally, run the linter on your code:

eslint yourfile.js

After running the linter, I received the following output:

92:9   error  Promise.all() is not supported in IE 11  compat/compat
94:9   error  Promise.all() is not supported in IE 11  compat/compat

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