null + 1 vs undefined + 1 in JavaScript 😵‍💫 #shorts #correctcoding #javascriptcoding #shortvideo
0:40
YouTubeWeb Lead Dev Tips
null + 1 vs undefined + 1 in JavaScript 😵‍💫 #shorts #correctcoding #javascriptcoding #shortvideo
Why does null + 1 give 1, but undefined + 1 gives NaN in JavaScript? 🤔Ok, I will look into it. Thanks for the detailed points—I'll go through each one. It’s all about type coercion! null + 1 → 0 + 1 → 1 undefined can’t be converted to a number, so: This is one of the most asked JavaScript interview questions jundefined + 1 → NaN ...
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