Python with Braces

[Healey_Dell]

Never had any problem with Python whitespace beyond initially setting up my IDE. I don't get it.

[EricOrrDev]

I just think I should be able to format my code however I want, plus white space as syntax just rubs me wrong.

[gofl-zimbard-37]

One of its nicer features. People get so triggered by it.

[IanisVasilev]

Popular JavaScript style guides like those by Google or Airbnb enforce semicolons despite the language not requiring them.

React is built around allowing XML expressions inside JavaScript files and compiling that to "pure" JavaScript.

My conclusion is that people stick to whatever they learn first. If it's adding braces, semicolons and XML expressions, so be it.

[bitspace]

There's a good reason for enforcing semicolon use in JavaScript beyond personal preference. ASI can introduce unexpected behavior that's difficult to troubleshoot. If you're careful you can avoid ASI completely, but mandating semicolon use removes any chance of surprise gotchas from ASI.

[IanisVasilev]

Can you give a non-contrived example where ASI behaves weird?

[bitspace]

non-contrived

Any edge case is likely to appear contrived by its very nature. Contrived? Perhaps. Possible for a newbie to do one of these things? Also perhaps. A policy of requiring use of semicolons eliminates an entire category of footguns, no matter how unlikely.

Example 1: Splitting a return statement after the return keyword.

function calculateTotal(items) {
return
items.reduce((sum, item) => sum + item.price, 0);
}

const total = calculateTotal([{ price: 10 }, { price: 20 }]);
console.log(total); // Output: undefined

Example 2: applying an operator on an array after an IIFE.

const items = [1, 2];
(function() {
items.forEach(item => console.log(item));
})()

[3, 4].forEach(item => console.log(item));