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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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This is a pretty common and useful practice:
// default via value var un = undefined var v1 = un || 1 // default via a function call var myval = () => 1 var v2 = un || myval()
But it doesn't work (SyntaxError) when throwing an error:
var v3 = un || throw new Error('un is not set!')
Is there a way how to achieve the same effect in a similarly elegant way? This is IMHO a lot of boilerplate code:
if (!un) { throw new Error('un is not set!') } var v3 = un
Or is there any theoretical obstruction, why this is not, and never will be, possible?
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