Is it bad practice to use the same variable name in multiple for-loops?

Question

I was just linting some JavaScript code using JSHint. In the code I have two for-loops both used like this:

for (var i = 0; i < somevalue; i++) { ... }
         


        

Answer 1

It has been mentioned only in the comment by @TSCrowder: If your environment supports it (Firefox, Node.js), in ES6 you can use let declaration

//for-loop 1
for (let i = 0; ...; i++) { ... }

//for-loop 2
for (let i = 0; ...; i++) { ... }

which limits the scope to within the for-loop. Bonus: JSHint stops complaining.