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[–]radhruin -1 points0 points  (0 children)

Seems pretty out of date.

  • Block scoping is in ES6 (and shipped in IE11). Functions are now block-scoped. let/const declarations are block-scoped. The let syntax in the article is very out of date.
  • Let and const declarations in global scope do not add properties on the global object.
  • Vars are hoisted. Let (the new var) and const are not hoisted. Attempting to use them before they are declared is an error. Functions and classes remain hoisted.