B. JavaScript Reserved Words
Reserved words are words that have special meaning to JavaScript. Therefore, they cannot be used as variable or function names.
You’ll recognize many of the reserved words from previous chapters, but others will be unfamiliar. Some of the latter group are future reserved words; i.e., it’s expected that they might be used in future versions of JavaScript. They’re being set aside now so that you won’t have to revise your code when new revisions are released.
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