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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.
Fixed.
As far as I know, not using var will put any declaration in the global scope. So while you wouldn't want to do that on a real production app. Using it for these little solutions isn't necessarily wrong. As you probably don't need to worry about your namespace
here's an example:
drink = 'beer'
function drunk () {
console.log(drink)
}
drunk()
//'beer'
function wino () {
var drink = 'wine';
console.log(drink)
}
wino()
// 'wine'
drink
// 'beer'
Tests don't account for edge cases