The Difference Between var, let, and const in JavaScript
Variable declaration keywords in JavaScript can seem like the Spider-Man meme.
TL;DR
JavaScript has a unique history which has contributed to its confusing features and structure.
When considering when to use var, let, or const, you must take into c...
mjstromberg.hashnode.dev9 min read
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c# and beyond
Thanks for sharing this,
var and const were pretty clear to me but now I get the usage of let as well.
Just curious, is there any significant performance benefit in using let over var ? E.g. in a function where you have to declare some variables along the way.