I was having trouble while coding the “smallest common multiple” program and managed to write a program which consumed excessive memory. It would crash (Aw, snap!) every time I tried to load the page. So I followed the directions to remove “all locally stored challenges” and entered localStorage.clear; from the developer console. That took care of the hanging program, but I didn’t realize ALL my prior written code for every single challenge was going to disappear. Is this permanent? Fortunately my progress seems to still be tracked.
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Thanks I did finally locate it again.