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## pipeline.md

      
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                tabatkins
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              October 17, 2022 22:40
            
              
                Comparing the three pipeline proposals
              
          
    We've been deadlocked for a while on the pipeline operator proposal, for a few reasons.
Partially it's just low implementor interest, as this is fundamentally just syntactic sugar,
but also because there are three competing proposals
and the proponents of each haven't been convinced by the others yet.
In this essay I hope to briefly outline the problem space,
summarize the three proposals,
and talk about what's gained/lost by each of them.
(Spoiler: they're all nearly identical; we're arguing over very small potatoes.)

  
## metaprogramming-with-proxy.js
/*
  This code snippet demonstrates how to do metaprogramming
  in JavaScript using proxy and with statement.
  Run this in non-strict mode.
 */
const proxy = new Proxy({}, {
  get(target, key) {
    if(key === Symbol.unscopables) return {}
    return `${key.toUpperCase()} `
  },
	/*
	This code snippet demonstrates how to do metaprogramming
	in JavaScript using proxy and with statement.
	Run this in non-strict mode.
	*/
	const proxy = new Proxy({}, {
	get(target, key) {
	if(key === Symbol.unscopables) return {}
	return `${key.toUpperCase()} `
	},