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 .

Global variables are a common source of logic errors, so keeping a variable in the smallest scope is always good practice. Conclusion Although variables are a fairly simple aspect of JavaScript ...

These JavaScript variable and function scoping examples were generated for my teaching demo with Girl Develop It. The purpose of the examples is to develop and deepen a beginner's understanding of ...

I have seen many developers - my younger self included - struggle with JavaScript's variables and scopes, even if they have some experience with coding and/or the language itself. While there are ...

i.e. intuitively it looks like the variable will only be available within the block but it is accessible outside the block .. in javascript's case, because var doesn't make a block level ...