[AskJS] Is there a detailed comparison chart that shows what's supported in JavaScript ES5 versus ES6?

1

Can I use

Sounds like a browser compatibility chart is exactly what you want. Browsers don’t really implement exactly along the lines of ES5, 6, etc., so it’s kind of irrelevant what was technically included in each release. Worry about which browsers you want to support, and how many older versions of each you care about. Check out https://caniuse.com/. Also, if you’re using babel for transpilation they have plugins specifically for adjusting the output to meet your desired compatibility.

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2

Closure Compiler

I'm using the Google Closure Compiler. I believe it has similar capabilities.

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