A function scope is in a way also a block scope, so let and constwould behave the same way they did in our previous examples. However, function scopes also encapsulate variables declared with var .

Achieving Block Scope With Immediate Functions In JavaScript 4 December, 2011. It was a Sunday. I was digging around on twitter and I found a great comment from @BenAtExocortex: “Javascript has no ...

This example demonstrates a common source of confusion in JavaScript related to block scope when using the let keyword. The code in bug.js shows how variables declared with let are only accessible ...