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TadoTheRustacean@programming.dev to Programmer Humor@programming.dev · 1 year ago

What are variables and semicolons for actually?

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What are variables and semicolons for actually?

TadoTheRustacean@programming.dev to Programmer Humor@programming.dev · 1 year ago
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  • dohpaz42@lemmy.world
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    1 year ago

    On a more serious note, does rust suffer some of the same issues as JavaScript when it comes to omitting semicolons?

    • Deebster@programming.dev
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      1 year ago

      No…?

    • marcos@lemmy.world
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      1 year ago

      Do not expect to find anything like Javascript craziness on other languages. Or you’ll be severely disappointed.

      • FizzyOrange@programming.dev
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        1 year ago

        There are plenty of languages with warts at least as bad as JavaScript’s. Bash, PHP, C, even relatively sane languages like Python still have huge issues like implicit variable declaration.

        • SpaceNoodle@lemmy.world
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          1 year ago

          JS and PHP are by themselves in a special ring of hell.

          • TadoTheRustacean@programming.devOP
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            1 year ago

            Bash is a bigger one. Luckily there’s nushell

      • jubilationtcornpone@sh.itjust.works
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        1 year ago
        for (const item in items) { }
        

        !=

        for (const item of items) { }
        
        • xigoi@lemmy.sdf.org
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          1 year ago

          Still better than

          for _, item in ipairs(items)
          
    • TheAgeOfSuperboredom@lemmy.ca
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      1 year ago

      Nope. In Rust, a semicolon denotes a statement while a lack of semicolon is an expression so you can’t just omit them at will. This does lead to cool things though like if/else blocks being able to produce values if they end in an expression. But the expression type is checked so you’re less likely to make a mistake. You can see an example here: https://doc.rust-lang.org/rust-by-example/flow_control/if_else.html

      In JavaScript I never skip semicolons because I’ve seen those subtle bugs.

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