I started a GIT branch for those who need a little help let me know if you need explanations added as well https://github.com/giannioudis/7-Days-of-JavaScript

//Global variable index has been declared and initialized //Edit the code below. console.log("The global index (before for-loop) is : ", index);

for(let index = 0; index < N; index++){ console.log("The local index is : ",index); }

console.log("The global index (after for-loop) is : ",index);

this challange have no sense, I've only changed the name of the variable used for the step in the for loop.

Uselesschallenge

I am a C user who tries to learn javascript. Generally implementing software using global variables are NOT safe.

I see many examples use "var" and its scope seems "ignore bracket" in javascript.

So Here is the question, is using "var" instead of "let" common and how can I use it safely?

Problem is to trivial. Ideally a question which utilizes more of this concept would be better.