How to Check Which JavaScript Runtime Is Running Your Code

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12 pointspmbanugo3 comments

Most of the time you should not even check for the runtime. Instead you should check for the specific feature support that you want to use.

+1, though sometimes it's useful to know the runtime variant & version to implement workarounds for implementation quirks or polyfills.

Or to aid recreating problems were, for instance, you've accidentally relied on undefined behaviour that happens to be consistent in most places.