When you need to specify the let, const and when?

For alternating rows - let, and for the array which I will then add the data using push() you need also to specify a let or const?
June 7th 19 at 14:24
2 answers
June 7th 19 at 14:26
Solution
If override is not plan - const
Plan - let

In General, try and use Eslint, it weird hands when need be.
June 7th 19 at 14:28
Solution
For the array, better const, as for other objects

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