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Shin Ting Lin
4,906 PointsWhy const main could be reassign?
Why const main could be reassign? or not use let main = document.querySelector('main')
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsWhen the developer creates a variable intended to hold only one value for the duration of the program, it's good practice to make it "const" just to be sure is isn't accidentally changed later due to a coding mistake.