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philnash@programming.dev to JavaScript@programming.devEnglish · 2 years ago

Stop nesting ternaries in JavaScript

www.sonarsource.com

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Stop nesting ternaries in JavaScript

www.sonarsource.com

philnash@programming.dev to JavaScript@programming.devEnglish · 2 years ago
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Nesting ternary operators makes code more complex and less clear. Let's investigate other ways to write conditional expressions.
  • CameronDev@programming.dev
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    2 years ago

    https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/switch - hasnt it had this forever? Or are you refering to something else?

    • spartanatreyu@programming.dev
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      2 years ago

      Pretty sure they meant match as in pattern matching, not switch as in switch/case/break.

      You can see the proposal here: https://github.com/tc39/proposal-pattern-matching

      • JakenVeina@lemm.ee
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        2 years ago

        Nah, I meant switch, as that’s what it’s called in C#-land. See above.

        That proposal for matching looks interesting, but not quite the same, no.

        • spartanatreyu@programming.dev
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          2 years ago

          Are you sure?

          Your C# example:

          var output = input switch
          {
              null    => "Null",
              0       => "Zero",
              > 0     => "Positive",
              _       => "Negative"
          };
          

          JS proposal for match:

          const output = match input {
              when null:    "Null";
              when 0:       "Zero";
              if input > 0: "Positive";
              default:      "Negative";
          }
          

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