• 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.