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ES5 had "future reserved words" including class, const, export, import, and let.

• livrem 4y ago
  Java has goto and const as reserved keywords. Source: https://docs.oracle.com/javase/tutorial/java/nutsandbolts/_keywords.html https://docs.oracle.com/javase/tutorial/java/nutsandbolts/_k...
• kps 4y ago
  C orignally had `entry` as a reserved work (from Fortran 77, where a function could have multiple entry points).
• WorldMaker 4y ago
  The ES5 case is interesting because most of that list of "future reserved words" was a list of reserved words in ES4 "The Lost Version". That list also included fun things still not used like private, public, abstract, package, byte, int, volatile, synchronized.
  • WorldMaker 4y ago
    One additional fun thing to note is that despite "private" already being reserved as a keyword TC-39 when they did somewhat recently add private fields to classes a few years back decided on "hash names" over the private keyword. class Example { #privateFieldName } Rather than: class Example { private privateFieldName } The debate on that was pretty interesting.