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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
What mattc said, plus I find it easier to mentally interpret a template string than a concatenated string.
Please don't use coloured text. It might look okay on the default dark theme, but it's unreadable on the light theme.
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One of the Author's replies implies this is not the case?
"They'll probably still work mostly, just change function helloWorld() to var helloWorld = function()"
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This code isn't optimized for speed, but for legibility. The slight gain in efficiency wouldn't be worth the additional mess.
Sometimes it gives a stdout buffer error when the random test cases cause too much output to be generated.
The description is off.
"Because of the edge-cases for tiny spirals, the size will be at least 5.". This isn't true.
Also, the expected output is a multidimensional arrays of 1's and 0's. Not strings of "0" and "."
dreadful