stackyFACTSNothing screams logical design like classifying a literal non-number as a numeric type. In JavaScript, checking the type of 'NaN' proudly returns 'number', letting your code fail at basic math while continuing to confidently execute as if everything is perfectly fine.
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![Why [] + [] becomes an empty string](https://cdn.stackyfacts.com/images/d1aa02bf-a013-4e2f-8dcf-21df6e97df10_back.jpg)
Because adding nothing to nothing should obviously equal an empty string. When you force JavaScript to evaluate '[] + []', it panics, converts both empty…
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The creator intentionally removed the ability to add descriptive comments to these files. This was done specifically out of spite, to force people to stop…
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Ah, the beauty of legacy code that can never be fixed. Due to a rushed implementation in the early days of JavaScript, checking the type of an absolutely…
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Living life dangerously on the edge of a runtime error. Languages without strict variable definitions will cheerfully accept a paragraph of text into a…
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Who needs numerical order when you can have alphabetical chaos? If you try to sort an array of numbers like 10, 2, and 1 in JavaScript without writing a…
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The zombie virus of software engineering. Once a single NaN gets calculated in a long chain of mathematical operations, it immediately turns every subsequent…
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