JavaScript Can't Do Maths? 6 Weird Results Explained

"b" + "a" + +"a" + "a" spells banana in JavaScript. Here are 6 weird things JavaScript does with maths, explained simply for everyone, and how they can break a real business.

TODAY'S LESSON: Computers follow exact rules, not common sense. 1. Turn text into numbers before maths (Number("100") + 50 = 150). 2. Sort with a proper number rule. 3. Test with real data.

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