I wrote Javascript in Sublime Text. But I think my experience still applies to ST2 / 3. The plugins you use are probably too weak to provide you with a true semantic end sentence. JShint is a transfusion tool. JSNext simply provides the next version of JavaScript, namely es6, syntax, and keywords. So your suggestions are, after all, a list of text that appears either in your own files or in JS syntax.
Fortunately, there are ST plugins that give you an IDE as smart completion. TernJS is one of the best, I think, and ST port plugin .

Even in an old text editor, you can get a terrific finish if a decent plugin is installed.
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