• DreadPirateShawn@lemmy.blahaj.zone
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      2 days ago

      The ternary syntax is really my only real gripe with python design – putting the conditional BETWEEN the true and false values feels so very messy to me.

      • porous_grey_matter@lemmy.ml
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        23 hours ago

        I think it’s just what you’re used to. Imo it really matters that it’s keywords and not operator symbols - it’s meant to read closer to natural language. I prefer the c version when it’s ? and :, but I like them this way round when it’s if and else.

        • l3mming@lemmy.world
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          1 day ago

          You clearly haven’t used Perl a lot. Perl’s ternary looks like:

          $even = $num % 2 ? “nay” : “yay”;

          Incidentally, it is also the same as PHP’s, but mainly because PHP stole it.

          • psud@aussie.zone
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            1 day ago

            You do get the if in the middle of stuff though in the form print(debug message) if $debug

            • palordrolap@fedia.io
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              1 day ago

              Wait until you learn that postfix conditionals are syntactic sugar and the compiler* turns that line into the equivalent of $debug and print(debug message), putting the conditional in first place, a lot like the ternary operator.

              * Perl compiles to bytecode before running.

              The ternary operator itself isn’t implemented in terms of and (and or) but it could be.

              • psud@aussie.zone
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                1 day ago

                Luckily I don’t need to read or write bytecode and all that matters to me is the syntax

      • jacksilver@lemmy.world
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        2 days ago

        I think the idea is it reads more naturally, so you can read it like this return A if statement is true else return B

      • BassTurd@lemmy.world
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        2 days ago

        Edit… I reread your comment and realized that python does it differently and that everything I typed was irrelevant… I’m still gonna leave it if anyone is interested in ternary expressions, but I suppose the answer to your question is, that’s just how python does it.

        That’s how ternary operators are designed to work. In essence, if you’re looking to do a single line if/then, you can directly assign a variable from the result of a ternary expression.

        As an example, I was scripting something earlier where there may or may not be a value returned from a function, but I still had to do something with that return value later. For this thing, I was using JavaScript.

        I ended up with:

        return platform == "name"  ? "Option 1" : "Option 2"
        

        If I were to write that out in a typical if/then it would be:

        if (platform == "name") {
            return "option 1"
        } else {
            return "option 2"
        }
        
        

        A ternary starts with a boolean expression, then the if true value, else the false value. That’s returned to either a variable or if in a function like my example, to the object calling the function. It’s just a way to write less code that in many cases is easier to read.