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Re: No need for IIFEs any more?

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On 13/03/2018 01:42, RobG wrote:
> Since block scoped variables were introduced in ECMAScript 2015,
> it's been possible to implement the same "private variable" functionality as
> is available using the IIFE pattern.

> [snip]

You may replace an IIFE with a block and a let or const declaration 
(*don't use 'var' in this case*) or a module in ES6. There were some 
examples of that in the book 'Exploring ES6', section 12.3.5, by Dr. 
Axel Rauschmayer:

<http://exploringjs.com/es6/ch_callables.html#sec_iifes-in-es6>

There's also the possibility of using an Immediately-Invoked Arrow 
Function (IIAF) in ES6. For example:

/*jshint esnext: true */
(() => {
   // code.
})();

BTW, your getNext() function may be refactored to a Generator in ES6:

/*jshint esnext: true */
{
   let gen = (function* idGen() {
     let i = 0;
     while(true) yield i++;
   }());

   console.log(gen.next()); // 0
   console.log(gen.next()); // 1
   console.log(gen.next()); // 3
}


-- 
Joao Rodrigues

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Thread

No need for IIFEs any more? RobG <rgqld@iinet.net.au> - 2018-03-12 21:42 -0700
  Re: No need for IIFEs any more? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-03-13 13:27 -0700
    Re: No need for IIFEs any more? RobG <rgqld@iinet.net.au> - 2018-03-15 21:47 -0700
  Re: No need for IIFEs any more? Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2018-03-13 18:43 -0300
    Re: No need for IIFEs any more? RobG <rgqld@iinet.net.au> - 2018-03-15 21:54 -0700

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