I tried to specify the node engine in a package.json to accept both 8 and 10 version.

I tried to type this:

"engines": { "node": "8.x|10.x"
},

But running yarn results in:

The engine "node" is incompatible with this module. Expected version "8.x|10.x"

If I replace with:

"engines": { "node": "10.x"
},

... it works (i.e no error).

Is there a way to accept two versions of node engine in a package.json?

2 Answers

See the documentation which includes examples.

Provide a space separated list of engines with greater/less than symbols.

{ "engines" : { "node" : ">=8.0.0 <11.0.0" }
}

2

You just need the double pipe || instead of a single.

"engines": { "node": "^8 || ^10"
}

Would match either v8.x.x or v10.x.x but not v9.

You can read more about it here

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