Missing compare function in test #12
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According to MDN docs [on Array.prototype.sort](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) >The default sort order is ascending, built upon converting the elements into strings ```javascript [100,2].sort() // [100, 2]``` So we would need the compare function to sort numbers properly ```javascript [100,2].sort((a,b) => a - b) // [2, 100]```
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According to MDN docs on Array.prototype.sort
So we would need the compare function to sort numbers properly