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Does Node.js support keyword support?

In Javascript 1.7, the keyword letenters the area of ​​the block. This is perhaps the most essential Javascript feature, and I was wondering if Node.js. supports it.

Part of my hard part in defining this Node is launching the Google V8 engine, which comes from such and such a standard, and I don’t know how they match the Javascript xy version numbers

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Yes, the keyword is supported letif you run Node with a flag --harmony. However, I would not recommend using it letin production software. (by the way, you could find this answer through a search before asking a new question)

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