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TechCodex@programming.dev to Programmer Humor@lemmy.mlEnglish · 2 years ago

Javascript can create atomic bombs

programming.dev

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Javascript can create atomic bombs

programming.dev

TechCodex@programming.dev to Programmer Humor@lemmy.mlEnglish · 2 years ago
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  • Rikudou_Sage@lemmings.world
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    2 years ago

    Doesn’t it widen the types regardless of position? Meaning 1 == “1” will be compared as strings, not numbers.

    • adrian783@lemmy.world
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      2 years ago

      https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Equality

      mdn goes into it more and it’s way more involved than I thought, looks like order of operand doesn’t matter. see the number to string section

      • Rikudou_Sage@lemmings.world
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        2 years ago

        It seems it is that way, which is weird. You should always convert to the widest type, meaning string for comparing numbers and strings. I just checked that 1 == "01" is true, which means that “01” gets cast to an integer. And according to the document it might be that for example 1 == "a" would basically be interpreted as 1 === NaN which is false.

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