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Why don't we use "const" or "let" in place of "var" in some of these projects? Specifically - the Lightbox project.
Steven Parker216,083 Points
You can substitute "const" or "let" for "var" in other projects as long as you're mindful of the differences in scope and how they may pertain to the situation. But for the most part, it won't be pertinent to the concepts being taught.